CISCO-SA-NXOS-NSCPDOS-SNDERKC7
Vulnerability from csaf_cisco - Published: 2026-10-07 16:00 - Updated: 2026-10-07 16:00Summary
Cisco NX-OS Software Control Plane Denial of Service Vulnerability
Notes
Summary: A vulnerability in Cisco NX-OS Software could allow an unauthenticated, remote attacker to exhaust system resources, causing a denial of service (DoS) condition.
This vulnerability exists because rate limiting was improperly applied to some protocols. An attacker could exploit this vulnerability by sending a high rate of UDP or TCP connections to a data plane interface on an affected device. A successful exploit could allow the attacker to cause instability to various routing and control plane protocols through some packet loss and temporary disruptions, causing a DoS condition. This DoS condition will clear without manual intervention soon after the high rate of traffic is stopped.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of October 7, 2026, Security Advisories ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-notice-fBn58ELx"]. For further documentation of improvements and fixes in Cisco NX-OS Software, see Cisco NX-OS Software Security Hardening Release: October 2026 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR"].
Vulnerable Products: At the time of publication, this vulnerability affected the following Cisco products if they were running a vulnerable release of Cisco NX-OS Software, regardless of device configuration:
Nexus 3000 Series Switches (CSCws61989 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws61989"])
Nexus 7000 Series Switches (CSCws28832 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws28832"])
Nexus 9000 Series Switches in standalone NX-OS mode (CSCws61989 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws61989"])
For information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software ["#fs"] section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
Products Confirmed Not Vulnerable: Only products listed in the Vulnerable Products ["#vp"] section of this advisory are known to be affected by this vulnerability.
Cisco has confirmed that this vulnerability does not affect the following Cisco products:
Firepower 1000 Series
Firepower 2100 Series
Firepower 4100 Series
Firepower 9300 Security Appliances
MDS 9000 Series Multilayer Switches
Nexus 9000 Series Fabric Switches in ACI mode
Secure Firewall 200 Series
Secure Firewall 1200 Series
Secure Firewall 3100 Series
Secure Firewall 4200 Series
Secure Firewall 6100 Series
UCS 6300 Series Fabric Interconnects
UCS 6400 Series Fabric Interconnects
UCS 6500 Series Fabric Interconnects
UCS 6600 Series Fabric Interconnects
UCS X-Series Direct Fabric Interconnect 9108 100G
Workarounds: There are no workarounds that address this vulnerability.
Fixed Software: Cisco considers any workarounds and mitigations (if applicable) to be temporary solutions until an upgrade to a fixed software release is available. To remediate this vulnerability and avoid future exposure as described in this advisory, Cisco strongly recommends that customers upgrade to the fixed software indicated in this advisory.
Cisco NX-OS Software
To help customers determine their exposure to vulnerabilities in Cisco NX-OS Software, Cisco provides the Cisco Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"]. This tool identifies any Cisco security advisories that impact a specific software release and the earliest release that fixes the vulnerabilities that are described in each advisory (“First Fixed”). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities described in all the advisories that the Software Checker identifies (“Combined First Fixed”).
To use the tool, go to the Cisco Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"] page and follow the instructions. Alternatively, use the following form to search for vulnerabilities that affect a specific software release. To use the form, follow these steps:
Choose which advisories the tool will search—only this advisory, only advisories with a Critical or High Security Impact Rating (SIR) ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr"], or all advisories.
Choose the appropriate software.
Choose the appropriate platform.
Enter a release number—for example, 10.4(4) for Cisco Nexus 3000 Series Switches or 16.0(8e) for Cisco NX-OS Software in ACI mode.
Click Check.
Only this advisory All Critical and High advisories All advisories Cisco NX-OS Software Cisco NX-OS Software in ACI Mode Any Platform MDS 9000 Series Multilayer Switches Nexus 3000 Series Switches Nexus 5000 Series Switches Nexus 6000 Series Switches Nexus 7000 Series Switches Nexus 9000 Series Switches
Additional Resources
For help determining the best Cisco NX-OS Software release for a Cisco Nexus Switch, see the following Recommended Releases documents. If a security advisory recommends a later release, Cisco recommends following the advisory guidance.
Cisco MDS Series Switches ["https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/b_MDS_NX-OS_Recommended_Releases.html"]
Cisco Nexus 3000 Series Switches ["http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_3000_Series_Switches.html"]
Cisco Nexus 7000 Series Switches ["http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/recommended_releases/recommended_nx-os_releases.html"]
Cisco Nexus 9000 Series Switches ["http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_9000_Series_Switches.html"]
Cisco Nexus 9000 Series ACI-Mode Switches ["https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/recommended-release/b_Recommended_Cisco_ACI_Releases.html"]
To determine the best release for Cisco UCS Software, see the Recommended Releases documents in the release notes for the device.
Vulnerability Policy: To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy ["http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
For additional information on Cisco's vulnerability management, disclosure cadence, and software patching strategy, see Cisco's Transition to a Risk-Based Vulnerability Disclosure Model ["https://sec.cloudapps.cisco.com/security/center/resources/risk-based-disclosure"].
Exploitation and Public Announcements: The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
Source: Cisco would like to thank Naresh Chamdal of CGI UK for reporting this vulnerability.
Legal Disclaimer: SOFTWARE DOWNLOADS AND TECHNICAL SUPPORT
The Cisco Support and Downloads ["https://www.cisco.com/c/en/us/support/index.html"] page on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool. Please note that customers may download only software that was procured from Cisco directly or through a Cisco authorized reseller or partner and for which the license is still valid.
Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC) ["https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"]. Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.
When considering software upgrades ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"], customers are advised to regularly consult the advisories ["https://www.cisco.com/go/psirt"] for the relevant Cisco products to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) ["https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"] or their contracted maintenance providers.
LEGAL DISCLAIMER DETAILS
CISCO DOES NOT MAKE ANY EXPRESS OR IMPLIED GUARANTEES OR WARRANTIES OF ANY KIND, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, CISCO DOES NOT GUARANTEE THE ACCURACY OR COMPLETENESS OF THIS INFORMATION. THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
Copies or summaries of the information contained in this Security Advisory may lack important information or contain factual errors. Customers are advised to visit the Cisco Security Advisories ["https://www.cisco.com/go/psirt"] page for the most recent version of this Security Advisory. The Cisco Product Security Incident Response Team (PSIRT) assesses only the affected and fixed release information that is documented in this advisory. See the Cisco Security Vulnerability Policy ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"] for more information.
5.8 (Medium)
Affected products
Known affected
127 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: CSAFPID-248793:265091 | — |
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| Unresolved product id: CSAFPID-248793:265096 | — |
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| Unresolved product id: CSAFPID-265141:265091 | — |
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| Unresolved product id: CSAFPID-265141:265096 | — |
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| Unresolved product id: CSAFPID-265142:265091 | — |
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| Unresolved product id: CSAFPID-265143:265091 | — |
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| Unresolved product id: CSAFPID-265143:265096 | — |
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| Unresolved product id: CSAFPID-265144:265091 | — |
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| Unresolved product id: CSAFPID-265144:265096 | — |
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| Unresolved product id: CSAFPID-265568:265091 | — |
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| Unresolved product id: CSAFPID-265568:265096 | — |
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| Unresolved product id: CSAFPID-267105:265091 | — |
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| Unresolved product id: CSAFPID-267105:265096 | — |
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| Unresolved product id: CSAFPID-268971:265091 | — |
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| Unresolved product id: CSAFPID-271405:265091 | — |
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| Unresolved product id: CSAFPID-271405:265096 | — |
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| Unresolved product id: CSAFPID-274557:265091 | — |
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| Unresolved product id: CSAFPID-274557:265096 | — |
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| Unresolved product id: CSAFPID-276381:265096 | — |
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| Unresolved product id: CSAFPID-277347:265091 | — |
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| Unresolved product id: CSAFPID-277347:265096 | — |
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| Unresolved product id: CSAFPID-278882:265091 | — |
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| Unresolved product id: CSAFPID-278882:265096 | — |
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| Unresolved product id: CSAFPID-280558:265091 | — |
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| Unresolved product id: CSAFPID-280558:265096 | — |
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| Unresolved product id: CSAFPID-280940:265096 | — |
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| Unresolved product id: CSAFPID-281562:265088 | — |
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| Unresolved product id: CSAFPID-281984:265091 | — |
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| Unresolved product id: CSAFPID-281984:265096 | — |
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| Unresolved product id: CSAFPID-282019:265091 | — |
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| Unresolved product id: CSAFPID-282019:265096 | — |
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| Unresolved product id: CSAFPID-282693:265088 | — |
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| Unresolved product id: CSAFPID-284262:265088 | — |
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| Unresolved product id: CSAFPID-284263:265088 | — |
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| Unresolved product id: CSAFPID-284264:265091 | — |
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| Unresolved product id: CSAFPID-284264:265096 | — |
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| Unresolved product id: CSAFPID-284316:265091 | — |
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| Unresolved product id: CSAFPID-284316:265096 | — |
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| Unresolved product id: CSAFPID-284561:265088 | — |
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| Unresolved product id: CSAFPID-286057:265088 | — |
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| Unresolved product id: CSAFPID-286439:265091 | — |
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| Unresolved product id: CSAFPID-286439:265096 | — |
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| Unresolved product id: CSAFPID-287071:265088 | — |
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| Unresolved product id: CSAFPID-288219:265091 | — |
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| Unresolved product id: CSAFPID-288219:265096 | — |
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| Unresolved product id: CSAFPID-289309:265091 | — |
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| Unresolved product id: CSAFPID-289309:265096 | — |
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| Unresolved product id: CSAFPID-290560:265088 | — |
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| Unresolved product id: CSAFPID-292557:265088 | — |
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| Unresolved product id: CSAFPID-292658:265091 | — |
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| Unresolved product id: CSAFPID-292658:265096 | — |
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| Unresolved product id: CSAFPID-292868:265091 | — |
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| Unresolved product id: CSAFPID-292868:265096 | — |
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| Unresolved product id: CSAFPID-292870:265088 | — |
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| Unresolved product id: CSAFPID-295511:265091 | — |
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| Unresolved product id: CSAFPID-295511:265096 | — |
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| Unresolved product id: CSAFPID-295515:265088 | — |
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| Unresolved product id: CSAFPID-299968:265091 | — |
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| Unresolved product id: CSAFPID-299968:265096 | — |
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| Unresolved product id: CSAFPID-299969:265096 | — |
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| Unresolved product id: CSAFPID-300275:265088 | — |
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| Unresolved product id: CSAFPID-300515:265091 | — |
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| Unresolved product id: CSAFPID-300515:265096 | — |
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| Unresolved product id: CSAFPID-300516:265096 | — |
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| Unresolved product id: CSAFPID-300517:265096 | — |
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| Unresolved product id: CSAFPID-300741:265096 | — |
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| Unresolved product id: CSAFPID-300941:265091 | — |
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| Unresolved product id: CSAFPID-300941:265096 | — |
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| Unresolved product id: CSAFPID-300942:265096 | — |
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| Unresolved product id: CSAFPID-301024:265091 | — |
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| Unresolved product id: CSAFPID-301024:265096 | — |
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| Unresolved product id: CSAFPID-301105:265088 | — |
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| Unresolved product id: CSAFPID-301106:265096 | — |
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| Unresolved product id: CSAFPID-301115:265091 | — |
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| Unresolved product id: CSAFPID-301115:265096 | — |
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| Unresolved product id: CSAFPID-301137:265091 | — |
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| Unresolved product id: CSAFPID-301137:265096 | — |
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| Unresolved product id: CSAFPID-301255:265088 | — |
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| Unresolved product id: CSAFPID-301289:265096 | — |
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| Unresolved product id: CSAFPID-301568:265091 | — |
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| Unresolved product id: CSAFPID-301568:265096 | — |
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| Unresolved product id: CSAFPID-301718:265091 | — |
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| Unresolved product id: CSAFPID-301718:265096 | — |
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| Unresolved product id: CSAFPID-301720:265096 | — |
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| Unresolved product id: CSAFPID-302643:265096 | — |
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| Unresolved product id: CSAFPID-302754:265091 | — |
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| Unresolved product id: CSAFPID-302754:265096 | — |
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| Unresolved product id: CSAFPID-302780:265088 | — |
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| Unresolved product id: CSAFPID-302817:265091 | — |
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| Unresolved product id: CSAFPID-302817:265096 | — |
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| Unresolved product id: CSAFPID-302873:265091 | — |
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| Unresolved product id: CSAFPID-302873:265096 | — |
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| Unresolved product id: CSAFPID-302884:265096 | — |
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| Unresolved product id: CSAFPID-303016:265091 | — |
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| Unresolved product id: CSAFPID-303016:265096 | — |
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| Unresolved product id: CSAFPID-303064:265091 | — |
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| Unresolved product id: CSAFPID-303064:265096 | — |
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| Unresolved product id: CSAFPID-303309:265091 | — |
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| Unresolved product id: CSAFPID-303309:265096 | — |
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| Unresolved product id: CSAFPID-303320:265088 | — |
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| Unresolved product id: CSAFPID-303360:265091 | — |
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| Unresolved product id: CSAFPID-303360:265096 | — |
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| Unresolved product id: CSAFPID-303458:265091 | — |
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| Unresolved product id: CSAFPID-303458:265096 | — |
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| Unresolved product id: CSAFPID-303719:265096 | — |
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| Unresolved product id: CSAFPID-304106:265091 | — |
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| Unresolved product id: CSAFPID-304106:265096 | — |
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| Unresolved product id: CSAFPID-305294:265096 | — |
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| Unresolved product id: CSAFPID-306452:265091 | — |
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| Unresolved product id: CSAFPID-306452:265096 | — |
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| Unresolved product id: CSAFPID-306458:265096 | — |
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| Unresolved product id: CSAFPID-306579:265088 | — |
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| Unresolved product id: CSAFPID-306584:265096 | — |
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| Unresolved product id: CSAFPID-306596:265091 | — |
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| Unresolved product id: CSAFPID-306596:265096 | — |
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| Unresolved product id: CSAFPID-306599:265091 | — |
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| Unresolved product id: CSAFPID-306599:265096 | — |
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| Unresolved product id: CSAFPID-306630:265096 | — |
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| Unresolved product id: CSAFPID-306795:265091 | — |
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| Unresolved product id: CSAFPID-306795:265096 | — |
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| Unresolved product id: CSAFPID-306796:265096 | — |
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| Unresolved product id: CSAFPID-307071:265091 | — |
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| Unresolved product id: CSAFPID-307071:265096 | — |
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| Unresolved product id: CSAFPID-307265:265091 | — |
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| Unresolved product id: CSAFPID-307265:265096 | — |
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| Unresolved product id: CSAFPID-309401:265091 | — |
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| Unresolved product id: CSAFPID-309401:265096 | — |
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References
19 references
Acknowledgments
{
"document": {
"acknowledgments": [
{
"summary": "Cisco would like to thank Naresh Chamdal of CGI UK for reporting this vulnerability."
}
],
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"notes": [
{
"category": "summary",
"text": "A vulnerability in Cisco NX-OS Software could allow an unauthenticated, remote attacker to exhaust system resources, causing a denial of service (DoS) condition.\r\n\r\nThis vulnerability exists because rate limiting was improperly applied to some protocols. An attacker could exploit this vulnerability by sending a high rate of UDP or TCP connections to a data plane interface on an affected device. A successful exploit could allow the attacker to cause instability to various routing and control plane protocols through some packet loss and temporary disruptions, causing a DoS condition. This DoS condition will clear without manual intervention soon after the high rate of traffic is stopped.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\n\r\n\r\nThis advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of October 7, 2026, Security Advisories [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-notice-fBn58ELx\"]. For further documentation of improvements and fixes in Cisco NX-OS Software, see Cisco NX-OS Software Security Hardening Release: October 2026 [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR\"].",
"title": "Summary"
},
{
"category": "general",
"text": "At the time of publication, this vulnerability affected the following Cisco products if they were running a vulnerable release of Cisco NX-OS Software, regardless of device configuration:\r\n\r\nNexus 3000 Series Switches (CSCws61989 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws61989\"])\r\nNexus 7000 Series Switches (CSCws28832 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws28832\"])\r\nNexus 9000 Series Switches in standalone NX-OS mode (CSCws61989 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws61989\"])\r\n\r\nFor information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software [\"#fs\"] section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.",
"title": "Vulnerable Products"
},
{
"category": "general",
"text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following Cisco products:\r\n\r\nFirepower 1000 Series\r\nFirepower 2100 Series\r\nFirepower 4100 Series\r\nFirepower 9300 Security Appliances\r\nMDS 9000 Series Multilayer Switches\r\nNexus 9000 Series Fabric Switches in ACI mode\r\nSecure Firewall 200 Series\r\nSecure Firewall 1200 Series\r\nSecure Firewall 3100 Series\r\nSecure Firewall 4200 Series\r\nSecure Firewall 6100 Series\r\nUCS 6300 Series Fabric Interconnects\r\nUCS 6400 Series Fabric Interconnects\r\nUCS 6500 Series Fabric Interconnects\r\nUCS 6600 Series Fabric Interconnects\r\nUCS X-Series Direct Fabric Interconnect 9108 100G",
"title": "Products Confirmed Not Vulnerable"
},
{
"category": "general",
"text": "There are no workarounds that address this vulnerability.",
"title": "Workarounds"
},
{
"category": "general",
"text": "Cisco considers any workarounds and mitigations (if applicable) to be temporary solutions until an upgrade to a fixed software release is available. To remediate this vulnerability and avoid future exposure as described in this advisory, Cisco strongly recommends that customers upgrade to the fixed software indicated in this advisory.\r\n Cisco NX-OS Software\r\nTo help customers determine their exposure to vulnerabilities in Cisco NX-OS Software, Cisco provides the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"]. This tool identifies any Cisco security advisories that impact a specific software release and the earliest release that fixes the vulnerabilities that are described in each advisory (\u201cFirst Fixed\u201d). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities described in all the advisories that the Software Checker identifies (\u201cCombined First Fixed\u201d).\r\n\r\nTo use the tool, go to the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] page and follow the instructions. Alternatively, use the following form to search for vulnerabilities that affect a specific software release. To use the form, follow these steps:\r\n\r\nChoose which advisories the tool will search\u2014only this advisory, only advisories with a Critical or High Security Impact Rating (SIR) [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr\"], or all advisories.\r\nChoose the appropriate software.\r\nChoose the appropriate platform.\r\nEnter a release number\u2014for example, 10.4(4) for Cisco Nexus 3000 Series Switches or 16.0(8e) for Cisco NX-OS Software in ACI mode.\r\nClick Check.\r\n\r\n Only this advisory All Critical and High advisories All advisories Cisco NX-OS Software Cisco NX-OS Software in ACI Mode Any Platform MDS 9000 Series Multilayer Switches Nexus 3000 Series Switches Nexus 5000 Series Switches Nexus 6000 Series Switches Nexus 7000 Series Switches Nexus 9000 Series Switches\r\n\r\n\r\n\r\n Additional Resources\r\nFor help determining the best Cisco NX-OS Software release for a Cisco Nexus Switch, see the following Recommended Releases documents. If a security advisory recommends a later release, Cisco recommends following the advisory guidance.\r\n\r\nCisco MDS Series Switches [\"https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/b_MDS_NX-OS_Recommended_Releases.html\"]\r\nCisco Nexus 3000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_3000_Series_Switches.html\"]\r\nCisco Nexus 7000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/recommended_releases/recommended_nx-os_releases.html\"]\r\nCisco Nexus 9000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_9000_Series_Switches.html\"]\r\nCisco Nexus 9000 Series ACI-Mode Switches [\"https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/recommended-release/b_Recommended_Cisco_ACI_Releases.html\"]\r\n\r\nTo determine the best release for Cisco UCS Software, see the Recommended Releases documents in the release notes for the device.",
"title": "Fixed Software"
},
{
"category": "general",
"text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.\r\n\r\nFor additional information on Cisco\u0027s vulnerability management, disclosure cadence, and software patching strategy, see Cisco\u0027s Transition to a Risk-Based Vulnerability Disclosure Model [\"https://sec.cloudapps.cisco.com/security/center/resources/risk-based-disclosure\"].",
"title": "Vulnerability Policy"
},
{
"category": "general",
"text": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.",
"title": "Exploitation and Public Announcements"
},
{
"category": "general",
"text": "Cisco would like to thank Naresh Chamdal of CGI UK for reporting this vulnerability.",
"title": "Source"
},
{
"category": "legal_disclaimer",
"text": "SOFTWARE DOWNLOADS AND TECHNICAL SUPPORT\r\n\r\nThe Cisco Support and Downloads [\"https://www.cisco.com/c/en/us/support/index.html\"] page on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool. Please note that customers may download only software that was procured from Cisco directly or through a Cisco authorized reseller or partner and for which the license is still valid.\r\n\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC) [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]. Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories [\"https://www.cisco.com/go/psirt\"] for the relevant Cisco products to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"] or their contracted maintenance providers.\r\nLEGAL DISCLAIMER DETAILS\r\n\r\nCISCO DOES NOT MAKE ANY EXPRESS OR IMPLIED GUARANTEES OR WARRANTIES OF ANY KIND, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, CISCO DOES NOT GUARANTEE THE ACCURACY OR COMPLETENESS OF THIS INFORMATION. THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nCopies or summaries of the information contained in this Security Advisory may lack important information or contain factual errors. Customers are advised to visit the Cisco Security Advisories [\"https://www.cisco.com/go/psirt\"] page for the most recent version of this Security Advisory. The Cisco Product Security Incident Response Team (PSIRT) assesses only the affected and fixed release information that is documented in this advisory. See the Cisco Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"] for more information.",
"title": "Legal Disclaimer"
}
],
"publisher": {
"category": "vendor",
"contact_details": "psirt@cisco.com",
"issuing_authority": "Cisco PSIRT",
"name": "Cisco",
"namespace": "https://wwww.cisco.com"
},
"references": [
{
"category": "self",
"summary": "Cisco NX-OS Software Control Plane Denial of Service Vulnerability",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-nscpdos-SnderkC7"
},
{
"category": "external",
"summary": "Cisco Security Vulnerability Policy",
"url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
},
{
"category": "external",
"summary": "Cisco Advance Notification for Publication of October 7, 2026, Security Advisories",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-notice-fBn58ELx"
},
{
"category": "external",
"summary": "Cisco NX-OS Software Security Hardening Release: October 2026",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR"
},
{
"category": "external",
"summary": "CSCws61989",
"url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws61989"
},
{
"category": "external",
"summary": "CSCws28832",
"url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws28832"
},
{
"category": "external",
"summary": "Cisco Software Checker",
"url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
},
{
"category": "external",
"summary": "Security Impact Rating (SIR)",
"url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr"
},
{
"category": "external",
"summary": "Cisco MDS Series Switches",
"url": "https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/b_MDS_NX-OS_Recommended_Releases.html"
},
{
"category": "external",
"summary": "Cisco Nexus 3000 Series Switches",
"url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_3000_Series_Switches.html"
},
{
"category": "external",
"summary": "Cisco Nexus 7000 Series Switches",
"url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/recommended_releases/recommended_nx-os_releases.html"
},
{
"category": "external",
"summary": "Cisco Nexus 9000 Series Switches",
"url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_9000_Series_Switches.html"
},
{
"category": "external",
"summary": "Cisco Nexus 9000 Series ACI-Mode Switches",
"url": "https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/recommended-release/b_Recommended_Cisco_ACI_Releases.html"
},
{
"category": "external",
"summary": "Security Vulnerability Policy",
"url": "http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"
},
{
"category": "external",
"summary": "Cisco\u0027s Transition to a Risk-Based Vulnerability Disclosure Model",
"url": "https://sec.cloudapps.cisco.com/security/center/resources/risk-based-disclosure"
},
{
"category": "external",
"summary": "Cisco Support and Downloads",
"url": "https://www.cisco.com/c/en/us/support/index.html"
},
{
"category": "external",
"summary": "Cisco Technical Assistance Center (TAC)",
"url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"
},
{
"category": "external",
"summary": "considering software upgrades",
"url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
},
{
"category": "external",
"summary": "the advisories",
"url": "https://www.cisco.com/go/psirt"
}
],
"title": "Cisco NX-OS Software Control Plane Denial of Service Vulnerability",
"tracking": {
"current_release_date": "2026-10-07T16:00:00+00:00",
"generator": {
"date": "2026-10-07T15:51:09+00:00",
"engine": {
"name": "TVCE"
}
},
"id": "cisco-sa-nxos-nscpdos-SnderkC7",
"initial_release_date": "2026-10-07T16:00:00+00:00",
"revision_history": [
{
"date": "2026-10-07T15:51:05+00:00",
"number": "1.0.0",
"summary": "Initial public release."
}
],
"status": "final",
"version": "1.0.0"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"branches": [
{
"category": "service_pack",
"name": "8.2(7)",
"product": {
"name": "8.2(7)",
"product_id": "CSAFPID-282693"
}
},
{
"category": "service_pack",
"name": "8.2(7a)",
"product": {
"name": "8.2(7a)",
"product_id": "CSAFPID-284262"
}
},
{
"category": "service_pack",
"name": "8.2(8)",
"product": {
"name": "8.2(8)",
"product_id": "CSAFPID-286057"
}
},
{
"category": "service_pack",
"name": "8.2(9)",
"product": {
"name": "8.2(9)",
"product_id": "CSAFPID-290560"
}
},
{
"category": "service_pack",
"name": "8.2(10)",
"product": {
"name": "8.2(10)",
"product_id": "CSAFPID-295515"
}
},
{
"category": "service_pack",
"name": "8.2(11)",
"product": {
"name": "8.2(11)",
"product_id": "CSAFPID-301255"
}
}
],
"category": "product_version",
"name": "8.2"
},
{
"branches": [
{
"category": "service_pack",
"name": "9.2(1)",
"product": {
"name": "9.2(1)",
"product_id": "CSAFPID-248793"
}
},
{
"category": "service_pack",
"name": "9.2(2)",
"product": {
"name": "9.2(2)",
"product_id": "CSAFPID-265141"
}
},
{
"category": "service_pack",
"name": "9.2(2t)",
"product": {
"name": "9.2(2t)",
"product_id": "CSAFPID-265142"
}
},
{
"category": "service_pack",
"name": "9.2(3)",
"product": {
"name": "9.2(3)",
"product_id": "CSAFPID-265143"
}
},
{
"category": "service_pack",
"name": "9.2(3y)",
"product": {
"name": "9.2(3y)",
"product_id": "CSAFPID-265144"
}
},
{
"category": "service_pack",
"name": "9.2(4)",
"product": {
"name": "9.2(4)",
"product_id": "CSAFPID-267105"
}
},
{
"category": "service_pack",
"name": "9.2(2v)",
"product": {
"name": "9.2(2v)",
"product_id": "CSAFPID-268971"
}
}
],
"category": "product_version",
"name": "9.2"
},
{
"branches": [
{
"category": "service_pack",
"name": "8.4(4)",
"product": {
"name": "8.4(4)",
"product_id": "CSAFPID-281562"
}
},
{
"category": "service_pack",
"name": "8.4(4a)",
"product": {
"name": "8.4(4a)",
"product_id": "CSAFPID-284263"
}
},
{
"category": "service_pack",
"name": "8.4(5)",
"product": {
"name": "8.4(5)",
"product_id": "CSAFPID-284561"
}
},
{
"category": "service_pack",
"name": "8.4(6)",
"product": {
"name": "8.4(6)",
"product_id": "CSAFPID-287071"
}
},
{
"category": "service_pack",
"name": "8.4(6a)",
"product": {
"name": "8.4(6a)",
"product_id": "CSAFPID-292557"
}
},
{
"category": "service_pack",
"name": "8.4(7)",
"product": {
"name": "8.4(7)",
"product_id": "CSAFPID-292870"
}
},
{
"category": "service_pack",
"name": "8.4(8)",
"product": {
"name": "8.4(8)",
"product_id": "CSAFPID-300275"
}
},
{
"category": "service_pack",
"name": "8.4(9)",
"product": {
"name": "8.4(9)",
"product_id": "CSAFPID-301105"
}
},
{
"category": "service_pack",
"name": "8.4(10)",
"product": {
"name": "8.4(10)",
"product_id": "CSAFPID-302780"
}
},
{
"category": "service_pack",
"name": "8.4(11)",
"product": {
"name": "8.4(11)",
"product_id": "CSAFPID-303320"
}
},
{
"category": "service_pack",
"name": "8.4(12)",
"product": {
"name": "8.4(12)",
"product_id": "CSAFPID-306579"
}
}
],
"category": "product_version",
"name": "8.4"
},
{
"branches": [
{
"category": "service_pack",
"name": "9.3(1)",
"product": {
"name": "9.3(1)",
"product_id": "CSAFPID-265568"
}
},
{
"category": "service_pack",
"name": "9.3(2)",
"product": {
"name": "9.3(2)",
"product_id": "CSAFPID-271405"
}
},
{
"category": "service_pack",
"name": "9.3(3)",
"product": {
"name": "9.3(3)",
"product_id": "CSAFPID-274557"
}
},
{
"category": "service_pack",
"name": "9.3(1z)",
"product": {
"name": "9.3(1z)",
"product_id": "CSAFPID-276381"
}
},
{
"category": "service_pack",
"name": "9.3(4)",
"product": {
"name": "9.3(4)",
"product_id": "CSAFPID-277347"
}
},
{
"category": "service_pack",
"name": "9.3(5)",
"product": {
"name": "9.3(5)",
"product_id": "CSAFPID-278882"
}
},
{
"category": "service_pack",
"name": "9.3(6)",
"product": {
"name": "9.3(6)",
"product_id": "CSAFPID-280558"
}
},
{
"category": "service_pack",
"name": "9.3(5w)",
"product": {
"name": "9.3(5w)",
"product_id": "CSAFPID-280940"
}
},
{
"category": "service_pack",
"name": "9.3(7)",
"product": {
"name": "9.3(7)",
"product_id": "CSAFPID-281984"
}
},
{
"category": "service_pack",
"name": "9.3(7k)",
"product": {
"name": "9.3(7k)",
"product_id": "CSAFPID-282019"
}
},
{
"category": "service_pack",
"name": "9.3(7a)",
"product": {
"name": "9.3(7a)",
"product_id": "CSAFPID-284264"
}
},
{
"category": "service_pack",
"name": "9.3(8)",
"product": {
"name": "9.3(8)",
"product_id": "CSAFPID-284316"
}
},
{
"category": "service_pack",
"name": "9.3(9)",
"product": {
"name": "9.3(9)",
"product_id": "CSAFPID-286439"
}
},
{
"category": "service_pack",
"name": "9.3(10)",
"product": {
"name": "9.3(10)",
"product_id": "CSAFPID-288219"
}
},
{
"category": "service_pack",
"name": "9.3(11)",
"product": {
"name": "9.3(11)",
"product_id": "CSAFPID-292868"
}
},
{
"category": "service_pack",
"name": "9.3(12)",
"product": {
"name": "9.3(12)",
"product_id": "CSAFPID-299968"
}
},
{
"category": "service_pack",
"name": "9.3(13)",
"product": {
"name": "9.3(13)",
"product_id": "CSAFPID-301137"
}
},
{
"category": "service_pack",
"name": "9.3(14)",
"product": {
"name": "9.3(14)",
"product_id": "CSAFPID-302873"
}
},
{
"category": "service_pack",
"name": "9.3(15)",
"product": {
"name": "9.3(15)",
"product_id": "CSAFPID-303458"
}
},
{
"category": "service_pack",
"name": "9.3(16)",
"product": {
"name": "9.3(16)",
"product_id": "CSAFPID-306599"
}
},
{
"category": "service_pack",
"name": "9.3(17)",
"product": {
"name": "9.3(17)",
"product_id": "CSAFPID-309401"
}
}
],
"category": "product_version",
"name": "9.3"
},
{
"branches": [
{
"category": "service_pack",
"name": "10.3(1)",
"product": {
"name": "10.3(1)",
"product_id": "CSAFPID-289309"
}
},
{
"category": "service_pack",
"name": "10.3(2)",
"product": {
"name": "10.3(2)",
"product_id": "CSAFPID-292658"
}
},
{
"category": "service_pack",
"name": "10.3(3)",
"product": {
"name": "10.3(3)",
"product_id": "CSAFPID-295511"
}
},
{
"category": "service_pack",
"name": "10.3(99w)",
"product": {
"name": "10.3(99w)",
"product_id": "CSAFPID-299969"
}
},
{
"category": "service_pack",
"name": "10.3(3w)",
"product": {
"name": "10.3(3w)",
"product_id": "CSAFPID-300516"
}
},
{
"category": "service_pack",
"name": "10.3(99x)",
"product": {
"name": "10.3(99x)",
"product_id": "CSAFPID-300517"
}
},
{
"category": "service_pack",
"name": "10.3(3o)",
"product": {
"name": "10.3(3o)",
"product_id": "CSAFPID-300741"
}
},
{
"category": "service_pack",
"name": "10.3(4a)",
"product": {
"name": "10.3(4a)",
"product_id": "CSAFPID-300941"
}
},
{
"category": "service_pack",
"name": "10.3(3p)",
"product": {
"name": "10.3(3p)",
"product_id": "CSAFPID-300942"
}
},
{
"category": "service_pack",
"name": "10.3(4)",
"product": {
"name": "10.3(4)",
"product_id": "CSAFPID-301024"
}
},
{
"category": "service_pack",
"name": "10.3(3q)",
"product": {
"name": "10.3(3q)",
"product_id": "CSAFPID-301106"
}
},
{
"category": "service_pack",
"name": "10.3(3x)",
"product": {
"name": "10.3(3x)",
"product_id": "CSAFPID-301289"
}
},
{
"category": "service_pack",
"name": "10.3(5)",
"product": {
"name": "10.3(5)",
"product_id": "CSAFPID-301718"
}
},
{
"category": "service_pack",
"name": "10.3(4g)",
"product": {
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},
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"relates_to_product_reference": "CSAFPID-265096"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Cisco NX-OS Software 10.5(4) when installed on Cisco Nexus 3000 Series Switches",
"product_id": "CSAFPID-306795:265091"
},
"product_reference": "CSAFPID-306795",
"relates_to_product_reference": "CSAFPID-265091"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Cisco NX-OS Software 10.5(4) when installed on Cisco Nexus 9000 Series Switches",
"product_id": "CSAFPID-306795:265096"
},
"product_reference": "CSAFPID-306795",
"relates_to_product_reference": "CSAFPID-265096"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Cisco NX-OS Software 10.5(3p) when installed on Cisco Nexus 9000 Series Switches",
"product_id": "CSAFPID-306796:265096"
},
"product_reference": "CSAFPID-306796",
"relates_to_product_reference": "CSAFPID-265096"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Cisco NX-OS Software 10.5(5) when installed on Cisco Nexus 3000 Series Switches",
"product_id": "CSAFPID-307265:265091"
},
"product_reference": "CSAFPID-307265",
"relates_to_product_reference": "CSAFPID-265091"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Cisco NX-OS Software 10.5(5) when installed on Cisco Nexus 9000 Series Switches",
"product_id": "CSAFPID-307265:265096"
},
"product_reference": "CSAFPID-307265",
"relates_to_product_reference": "CSAFPID-265096"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-20173",
"ids": [
{
"system_name": "Cisco Bug ID",
"text": "CSCws28832"
},
{
"system_name": "Cisco Bug ID",
"text": "CSCws61989"
}
],
"notes": [
{
"category": "other",
"text": "Complete.",
"title": "Affected Product Comprehensiveness"
}
],
"product_status": {
"known_affected": [
"CSAFPID-248793:265091",
"CSAFPID-248793:265096",
"CSAFPID-265141:265091",
"CSAFPID-265141:265096",
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"CSAFPID-265144:265096",
"CSAFPID-265568:265091",
"CSAFPID-265568:265096",
"CSAFPID-267105:265091",
"CSAFPID-267105:265096",
"CSAFPID-268971:265091",
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"CSAFPID-274557:265091",
"CSAFPID-274557:265096",
"CSAFPID-276381:265096",
"CSAFPID-277347:265091",
"CSAFPID-277347:265096",
"CSAFPID-278882:265091",
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"CSAFPID-302873:265091",
"CSAFPID-302873:265096",
"CSAFPID-302884:265096",
"CSAFPID-303016:265091",
"CSAFPID-303016:265096",
"CSAFPID-303064:265091",
"CSAFPID-303064:265096",
"CSAFPID-303309:265091",
"CSAFPID-303309:265096",
"CSAFPID-303320:265088",
"CSAFPID-303360:265091",
"CSAFPID-303360:265096",
"CSAFPID-303458:265091",
"CSAFPID-303458:265096",
"CSAFPID-303719:265096",
"CSAFPID-304106:265091",
"CSAFPID-304106:265096",
"CSAFPID-305294:265096",
"CSAFPID-306452:265091",
"CSAFPID-306452:265096",
"CSAFPID-306458:265096",
"CSAFPID-306579:265088",
"CSAFPID-306584:265096",
"CSAFPID-306596:265091",
"CSAFPID-306596:265096",
"CSAFPID-306599:265091",
"CSAFPID-306599:265096",
"CSAFPID-306630:265096",
"CSAFPID-306795:265091",
"CSAFPID-306795:265096",
"CSAFPID-306796:265096",
"CSAFPID-307071:265091",
"CSAFPID-307071:265096",
"CSAFPID-307265:265091",
"CSAFPID-307265:265096",
"CSAFPID-309401:265091",
"CSAFPID-309401:265096"
]
},
"release_date": "2026-10-07T16:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Cisco has released software updates that address this vulnerability.",
"product_ids": [
"CSAFPID-248793:265091",
"CSAFPID-248793:265096",
"CSAFPID-265141:265091",
"CSAFPID-265141:265096",
"CSAFPID-265142:265091",
"CSAFPID-265143:265091",
"CSAFPID-265143:265096",
"CSAFPID-265144:265091",
"CSAFPID-265144:265096",
"CSAFPID-265568:265091",
"CSAFPID-265568:265096",
"CSAFPID-267105:265091",
"CSAFPID-267105:265096",
"CSAFPID-268971:265091",
"CSAFPID-271405:265091",
"CSAFPID-271405:265096",
"CSAFPID-274557:265091",
"CSAFPID-274557:265096",
"CSAFPID-276381:265096",
"CSAFPID-277347:265091",
"CSAFPID-277347:265096",
"CSAFPID-278882:265091",
"CSAFPID-278882:265096",
"CSAFPID-280558:265091",
"CSAFPID-280558:265096",
"CSAFPID-280940:265096",
"CSAFPID-281562:265088",
"CSAFPID-281984:265091",
"CSAFPID-281984:265096",
"CSAFPID-282019:265091",
"CSAFPID-282019:265096",
"CSAFPID-282693:265088",
"CSAFPID-284262:265088",
"CSAFPID-284263:265088",
"CSAFPID-284264:265091",
"CSAFPID-284264:265096",
"CSAFPID-284316:265091",
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"CSAFPID-284561:265088",
"CSAFPID-286057:265088",
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"CSAFPID-286439:265096",
"CSAFPID-287071:265088",
"CSAFPID-288219:265091",
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"CSAFPID-289309:265091",
"CSAFPID-289309:265096",
"CSAFPID-290560:265088",
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"CSAFPID-292658:265091",
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"CSAFPID-292868:265091",
"CSAFPID-292868:265096",
"CSAFPID-292870:265088",
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"CSAFPID-299969:265096",
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"CSAFPID-300515:265096",
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"CSAFPID-300517:265096",
"CSAFPID-300741:265096",
"CSAFPID-300941:265091",
"CSAFPID-300941:265096",
"CSAFPID-300942:265096",
"CSAFPID-301024:265091",
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"CSAFPID-301105:265088",
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"CSAFPID-301115:265091",
"CSAFPID-301115:265096",
"CSAFPID-301137:265091",
"CSAFPID-301137:265096",
"CSAFPID-301255:265088",
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"CSAFPID-301568:265091",
"CSAFPID-301568:265096",
"CSAFPID-301718:265091",
"CSAFPID-301718:265096",
"CSAFPID-301720:265096",
"CSAFPID-302643:265096",
"CSAFPID-302754:265091",
"CSAFPID-302754:265096",
"CSAFPID-302780:265088",
"CSAFPID-302817:265091",
"CSAFPID-302817:265096",
"CSAFPID-302873:265091",
"CSAFPID-302873:265096",
"CSAFPID-302884:265096",
"CSAFPID-303016:265091",
"CSAFPID-303016:265096",
"CSAFPID-303064:265091",
"CSAFPID-303064:265096",
"CSAFPID-303309:265091",
"CSAFPID-303309:265096",
"CSAFPID-303320:265088",
"CSAFPID-303360:265091",
"CSAFPID-303360:265096",
"CSAFPID-303458:265091",
"CSAFPID-303458:265096",
"CSAFPID-303719:265096",
"CSAFPID-304106:265091",
"CSAFPID-304106:265096",
"CSAFPID-305294:265096",
"CSAFPID-306452:265091",
"CSAFPID-306452:265096",
"CSAFPID-306458:265096",
"CSAFPID-306579:265088",
"CSAFPID-306584:265096",
"CSAFPID-306596:265091",
"CSAFPID-306596:265096",
"CSAFPID-306599:265091",
"CSAFPID-306599:265096",
"CSAFPID-306630:265096",
"CSAFPID-306795:265091",
"CSAFPID-306795:265096",
"CSAFPID-306796:265096",
"CSAFPID-307071:265091",
"CSAFPID-307071:265096",
"CSAFPID-307265:265091",
"CSAFPID-307265:265096",
"CSAFPID-309401:265091",
"CSAFPID-309401:265096"
],
"url": "https://software.cisco.com"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L",
"version": "3.1"
},
"products": [
"CSAFPID-248793:265091",
"CSAFPID-248793:265096",
"CSAFPID-265141:265091",
"CSAFPID-265141:265096",
"CSAFPID-265142:265091",
"CSAFPID-265143:265091",
"CSAFPID-265143:265096",
"CSAFPID-265144:265091",
"CSAFPID-265144:265096",
"CSAFPID-265568:265091",
"CSAFPID-265568:265096",
"CSAFPID-267105:265091",
"CSAFPID-267105:265096",
"CSAFPID-268971:265091",
"CSAFPID-271405:265091",
"CSAFPID-271405:265096",
"CSAFPID-274557:265091",
"CSAFPID-274557:265096",
"CSAFPID-276381:265096",
"CSAFPID-277347:265091",
"CSAFPID-277347:265096",
"CSAFPID-278882:265091",
"CSAFPID-278882:265096",
"CSAFPID-280558:265091",
"CSAFPID-280558:265096",
"CSAFPID-280940:265096",
"CSAFPID-281562:265088",
"CSAFPID-281984:265091",
"CSAFPID-281984:265096",
"CSAFPID-282019:265091",
"CSAFPID-282019:265096",
"CSAFPID-282693:265088",
"CSAFPID-284262:265088",
"CSAFPID-284263:265088",
"CSAFPID-284264:265091",
"CSAFPID-284264:265096",
"CSAFPID-284316:265091",
"CSAFPID-284316:265096",
"CSAFPID-284561:265088",
"CSAFPID-286057:265088",
"CSAFPID-286439:265091",
"CSAFPID-286439:265096",
"CSAFPID-287071:265088",
"CSAFPID-288219:265091",
"CSAFPID-288219:265096",
"CSAFPID-289309:265091",
"CSAFPID-289309:265096",
"CSAFPID-290560:265088",
"CSAFPID-292557:265088",
"CSAFPID-292658:265091",
"CSAFPID-292658:265096",
"CSAFPID-292868:265091",
"CSAFPID-292868:265096",
"CSAFPID-292870:265088",
"CSAFPID-295511:265091",
"CSAFPID-295511:265096",
"CSAFPID-295515:265088",
"CSAFPID-299968:265091",
"CSAFPID-299968:265096",
"CSAFPID-299969:265096",
"CSAFPID-300275:265088",
"CSAFPID-300515:265091",
"CSAFPID-300515:265096",
"CSAFPID-300516:265096",
"CSAFPID-300517:265096",
"CSAFPID-300741:265096",
"CSAFPID-300941:265091",
"CSAFPID-300941:265096",
"CSAFPID-300942:265096",
"CSAFPID-301024:265091",
"CSAFPID-301024:265096",
"CSAFPID-301105:265088",
"CSAFPID-301106:265096",
"CSAFPID-301115:265091",
"CSAFPID-301115:265096",
"CSAFPID-301137:265091",
"CSAFPID-301137:265096",
"CSAFPID-301255:265088",
"CSAFPID-301289:265096",
"CSAFPID-301568:265091",
"CSAFPID-301568:265096",
"CSAFPID-301718:265091",
"CSAFPID-301718:265096",
"CSAFPID-301720:265096",
"CSAFPID-302643:265096",
"CSAFPID-302754:265091",
"CSAFPID-302754:265096",
"CSAFPID-302780:265088",
"CSAFPID-302817:265091",
"CSAFPID-302817:265096",
"CSAFPID-302873:265091",
"CSAFPID-302873:265096",
"CSAFPID-302884:265096",
"CSAFPID-303016:265091",
"CSAFPID-303016:265096",
"CSAFPID-303064:265091",
"CSAFPID-303064:265096",
"CSAFPID-303309:265091",
"CSAFPID-303309:265096",
"CSAFPID-303320:265088",
"CSAFPID-303360:265091",
"CSAFPID-303360:265096",
"CSAFPID-303458:265091",
"CSAFPID-303458:265096",
"CSAFPID-303719:265096",
"CSAFPID-304106:265091",
"CSAFPID-304106:265096",
"CSAFPID-305294:265096",
"CSAFPID-306452:265091",
"CSAFPID-306452:265096",
"CSAFPID-306458:265096",
"CSAFPID-306579:265088",
"CSAFPID-306584:265096",
"CSAFPID-306596:265091",
"CSAFPID-306596:265096",
"CSAFPID-306599:265091",
"CSAFPID-306599:265096",
"CSAFPID-306630:265096",
"CSAFPID-306795:265091",
"CSAFPID-306795:265096",
"CSAFPID-306796:265096",
"CSAFPID-307071:265091",
"CSAFPID-307071:265096",
"CSAFPID-307265:265091",
"CSAFPID-307265:265096",
"CSAFPID-309401:265091",
"CSAFPID-309401:265096"
]
}
],
"title": "Cisco NX-OS Software Denial of Service Vulnerability"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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