Vulnerability-Lookup

BDU:2026-14592

Vulnerability from fstec - Published: 02.09.2026

Title

Уязвимость операционных систем Cisco IOS XR, связанная с некорректным вычислением, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Description

Уязвимость операционных систем Cisco IOS XR связана с некорректным вычислением. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Severity


                    
                      AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor

Cisco Systems, Inc.

Software Name

Cisco IOS XR

Software Version

до 7.11.21 (Cisco IOS XR), до 24.2.21 (Cisco IOS XR), до 24.3.2 (Cisco IOS XR), до 25.1.2 (Cisco IOS XR), до 25.2.21 (Cisco IOS XR), до 25.4.2 (Cisco IOS XR), до 25.2.2 (Cisco IOS XR), до 7.9.2 (Cisco IOS XR), до 7.10.2 (Cisco IOS XR), до 7.11.2 (Cisco IOS XR), до 24.1.2 (Cisco IOS XR), до 24.2.2 (Cisco IOS XR), до 24.4.2 (Cisco IOS XR), до 7.3.2 (Cisco IOS XR), до 7.9.21 (Cisco IOS XR), до 25.4.1 (Cisco IOS XR), до 26.1.2 (Cisco IOS XR), до 26.2.1 (Cisco IOS XR), до 26.2.2 (Cisco IOS XR), до 26.3.1 (Cisco IOS XR)

Possible Mitigations

Использование рекомендаций: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxr-qg64NcM

Reference

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxr-qg64NcM

CWE

CWE-682

JSON

To clipboard

{
  "CVSS 2.0": "AV:A/AC:L/Au:N/C:C/I:C/A:C",
  "CVSS 3.0": "AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Cisco Systems, Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u0434\u043e 7.11.21 (Cisco IOS XR), \u0434\u043e 24.2.21 (Cisco IOS XR), \u0434\u043e 24.3.2 (Cisco IOS XR), \u0434\u043e 25.1.2 (Cisco IOS XR), \u0434\u043e 25.2.21 (Cisco IOS XR), \u0434\u043e 25.4.2 (Cisco IOS XR), \u0434\u043e 25.2.2 (Cisco IOS XR), \u0434\u043e 7.9.2 (Cisco IOS XR), \u0434\u043e 7.10.2 (Cisco IOS XR), \u0434\u043e 7.11.2 (Cisco IOS XR), \u0434\u043e 24.1.2 (Cisco IOS XR), \u0434\u043e 24.2.2 (Cisco IOS XR), \u0434\u043e 24.4.2 (Cisco IOS XR), \u0434\u043e 7.3.2 (Cisco IOS XR), \u0434\u043e 7.9.21 (Cisco IOS XR), \u0434\u043e 25.4.1 (Cisco IOS XR), \u0434\u043e 26.1.2 (Cisco IOS XR), \u0434\u043e 26.2.1 (Cisco IOS XR), \u0434\u043e 26.2.2 (Cisco IOS XR), \u0434\u043e 26.3.1 (Cisco IOS XR)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxr-qg64NcM",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "02.09.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "14.09.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "14.09.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-14592",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2026-20275",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Cisco IOS XR",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.11.21 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.3.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 25.1.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 25.2.21 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 25.4.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 25.2.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.9.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.11.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.1.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.3.2 Network Convergence System 1002, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.9.21 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 25.4.1 Network Convergence System 1001, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 25.4.1 Network Convergence System 1004, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 25.4.1 Network Convergence System 1010, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 26.1.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 26.2.1 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 26.2.2 , Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 26.3.1 ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c Cisco IOS XR, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b\u043c \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u0435\u043c, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u0432\u0435\u0440\u043d\u044b\u0435 \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u044f (CWE-682)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c Cisco IOS XR \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b\u043c \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u0435\u043c. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxr-qg64NcM",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-682",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 8,3)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 8,8)"
}

CVE-2026-20275 (GCVE-0-2026-20275)

Vulnerability from cvelistv5 – Published: 2026-09-02 16:13 – Updated: 2026-09-16 03:56

CVE Program bundle warning

The CVE Program recognizes that this CVE Record provides vulnerability information that a Supplier CNA believes is very important to consumers. The CVE Program has flagged this CVE Record as it assigns a single CVE ID to a collection of individual vulnerabilities which does not align with CVE's "one vulnerability, one ID" principle, and therefore provides incomplete information. For further clarification, please see the CVE Program's blog, "Preserving Vulnerability-Level Identification" linked below. Details within the CNA container below are viewable by clicking on the CNA name.

https://www.cve.org/Media/News/item/blog/2026/06/…

Title

Cisco IOS XR Software Security Hardening Release: September 2026

Summary

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20275 are related to incorrect calculation issues that are grouped under the Common Weakness Enumeration (CWE) CWE-682.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-02 00:00 UTC

CWE

CWE-682 - Incorrect Calculation

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco IOS XR Software	Affected: 6.5.29 Affected: 7.0.1 Affected: 6.5.26 Affected: 6.5.25 Affected: 6.5.28 Affected: 6.5.90 Affected: 7.1.1 Affected: 7.0.90 Affected: 6.7.1 Affected: 7.0.2 Affected: 7.1.15 Affected: 7.2.1 Affected: 7.1.2 Affected: 6.7.2 Affected: 7.0.11 Affected: 7.0.12 Affected: 7.0.14 Affected: 7.1.25 Affected: 7.2.12 Affected: 7.3.1 Affected: 7.1.3 Affected: 6.7.3 Affected: 7.4.1 Affected: 7.2.2 Affected: 6.7.4 Affected: 6.5.31 Affected: 7.3.15 Affected: 7.3.16 Affected: 6.8.1 Affected: 7.4.15 Affected: 6.5.32 Affected: 7.3.2 Affected: 7.5.1 Affected: 7.4.16 Affected: 7.3.27 Affected: 7.6.1 Affected: 7.5.2 Affected: 7.8.1 Affected: 7.6.15 Affected: 7.5.12 Affected: 7.8.12 Affected: 7.3.3 Affected: 7.7.1 Affected: 6.8.2 Affected: 7.3.4 Affected: 7.4.2 Affected: 6.7.35 Affected: 6.9.1 Affected: 7.6.2 Affected: 7.5.3 Affected: 7.7.2 Affected: 6.9.2 Affected: 7.9.1 Affected: 7.10.1 Affected: 7.8.2 Affected: 7.5.4 Affected: 6.5.33 Affected: 7.8.22 Affected: 7.7.21 Affected: 7.9.2 Affected: 7.3.5 Affected: 7.5.5 Affected: 7.11.1 Affected: 7.9.21 Affected: 7.10.2 Affected: 24.1.1 Affected: 7.6.3 Affected: 7.3.6 Affected: 7.5.52 Affected: 7.11.2 Affected: 24.2.1 Affected: 24.1.2 Affected: 24.2.11 Affected: 24.3.1 Affected: 24.4.1 Affected: 24.2.2 Affected: 7.8.23 Affected: 7.11.21 Affected: 24.2.20 Affected: 24.3.2 Affected: 24.4.10 Affected: 6.5.35 Affected: 25.1.1 Affected: 24.4.2 Affected: 24.3.20 Affected: 24.4.15 Affected: 25.2.1 Affected: 6.5.351 Affected: 25.1.2 Affected: 24.3.30 Affected: 25.3.1 Affected: 6.5.352 Affected: 24.4.30 Affected: 24.2.21 Affected: 25.4.1 Affected: 25.2.2 Affected: 25.2.15 Affected: 7.2.0 Affected: 7.0.0 Affected: 25.2.30 Affected: 6.5.353 Affected: 26.1.1 Affected: 25.1.30 Affected: 25.3.15 Affected: 26.2.100 Affected: 25.4.2 Affected: 26.2.1 Affected: 25.4.30 Affected: 26.1.2 Affected: 25.4.201 Affected: 26.2.101

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-20275",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-02T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-03T03:56:31.780Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "descriptions": [
          {
            "lang": "en",
            "value": "The CVE Program recognizes that this CVE Record provides vulnerability information that a Supplier CNA believes is very important to consumers. The CVE Program has flagged this CVE Record as it assigns a single CVE ID to a collection of individual vulnerabilities which does not align with CVE\u0027s \"one vulnerability, one ID\" principle, and therefore provides incomplete information. For further clarification, please see the CVE Program\u0027s blog, \"Preserving Vulnerability-Level Identification\" linked below. Details within the CNA container below are viewable by clicking on the CNA name."
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-15T17:03:58.406Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification"
          }
        ],
        "tags": [
          "x_bundling-flagged-by-CVE-Program"
        ]
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco IOS XR Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "6.5.29"
            },
            {
              "status": "affected",
              "version": "7.0.1"
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            {
              "status": "affected",
              "version": "6.5.26"
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            {
              "status": "affected",
              "version": "6.5.25"
            },
            {
              "status": "affected",
              "version": "6.5.28"
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            {
              "status": "affected",
              "version": "6.5.90"
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            {
              "status": "affected",
              "version": "7.1.1"
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            {
              "status": "affected",
              "version": "7.0.90"
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            {
              "status": "affected",
              "version": "6.7.1"
            },
            {
              "status": "affected",
              "version": "7.0.2"
            },
            {
              "status": "affected",
              "version": "7.1.15"
            },
            {
              "status": "affected",
              "version": "7.2.1"
            },
            {
              "status": "affected",
              "version": "7.1.2"
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            {
              "status": "affected",
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            {
              "status": "affected",
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            {
              "status": "affected",
              "version": "7.0.12"
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            {
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              "status": "affected",
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              "status": "affected",
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            {
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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            {
              "status": "affected",
              "version": "6.7.4"
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            {
              "status": "affected",
              "version": "6.5.31"
            },
            {
              "status": "affected",
              "version": "7.3.15"
            },
            {
              "status": "affected",
              "version": "7.3.16"
            },
            {
              "status": "affected",
              "version": "6.8.1"
            },
            {
              "status": "affected",
              "version": "7.4.15"
            },
            {
              "status": "affected",
              "version": "6.5.32"
            },
            {
              "status": "affected",
              "version": "7.3.2"
            },
            {
              "status": "affected",
              "version": "7.5.1"
            },
            {
              "status": "affected",
              "version": "7.4.16"
            },
            {
              "status": "affected",
              "version": "7.3.27"
            },
            {
              "status": "affected",
              "version": "7.6.1"
            },
            {
              "status": "affected",
              "version": "7.5.2"
            },
            {
              "status": "affected",
              "version": "7.8.1"
            },
            {
              "status": "affected",
              "version": "7.6.15"
            },
            {
              "status": "affected",
              "version": "7.5.12"
            },
            {
              "status": "affected",
              "version": "7.8.12"
            },
            {
              "status": "affected",
              "version": "7.3.3"
            },
            {
              "status": "affected",
              "version": "7.7.1"
            },
            {
              "status": "affected",
              "version": "6.8.2"
            },
            {
              "status": "affected",
              "version": "7.3.4"
            },
            {
              "status": "affected",
              "version": "7.4.2"
            },
            {
              "status": "affected",
              "version": "6.7.35"
            },
            {
              "status": "affected",
              "version": "6.9.1"
            },
            {
              "status": "affected",
              "version": "7.6.2"
            },
            {
              "status": "affected",
              "version": "7.5.3"
            },
            {
              "status": "affected",
              "version": "7.7.2"
            },
            {
              "status": "affected",
              "version": "6.9.2"
            },
            {
              "status": "affected",
              "version": "7.9.1"
            },
            {
              "status": "affected",
              "version": "7.10.1"
            },
            {
              "status": "affected",
              "version": "7.8.2"
            },
            {
              "status": "affected",
              "version": "7.5.4"
            },
            {
              "status": "affected",
              "version": "6.5.33"
            },
            {
              "status": "affected",
              "version": "7.8.22"
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            {
              "status": "affected",
              "version": "7.7.21"
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            {
              "status": "affected",
              "version": "7.9.2"
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            {
              "status": "affected",
              "version": "7.3.5"
            },
            {
              "status": "affected",
              "version": "7.5.5"
            },
            {
              "status": "affected",
              "version": "7.11.1"
            },
            {
              "status": "affected",
              "version": "7.9.21"
            },
            {
              "status": "affected",
              "version": "7.10.2"
            },
            {
              "status": "affected",
              "version": "24.1.1"
            },
            {
              "status": "affected",
              "version": "7.6.3"
            },
            {
              "status": "affected",
              "version": "7.3.6"
            },
            {
              "status": "affected",
              "version": "7.5.52"
            },
            {
              "status": "affected",
              "version": "7.11.2"
            },
            {
              "status": "affected",
              "version": "24.2.1"
            },
            {
              "status": "affected",
              "version": "24.1.2"
            },
            {
              "status": "affected",
              "version": "24.2.11"
            },
            {
              "status": "affected",
              "version": "24.3.1"
            },
            {
              "status": "affected",
              "version": "24.4.1"
            },
            {
              "status": "affected",
              "version": "24.2.2"
            },
            {
              "status": "affected",
              "version": "7.8.23"
            },
            {
              "status": "affected",
              "version": "7.11.21"
            },
            {
              "status": "affected",
              "version": "24.2.20"
            },
            {
              "status": "affected",
              "version": "24.3.2"
            },
            {
              "status": "affected",
              "version": "24.4.10"
            },
            {
              "status": "affected",
              "version": "6.5.35"
            },
            {
              "status": "affected",
              "version": "25.1.1"
            },
            {
              "status": "affected",
              "version": "24.4.2"
            },
            {
              "status": "affected",
              "version": "24.3.20"
            },
            {
              "status": "affected",
              "version": "24.4.15"
            },
            {
              "status": "affected",
              "version": "25.2.1"
            },
            {
              "status": "affected",
              "version": "6.5.351"
            },
            {
              "status": "affected",
              "version": "25.1.2"
            },
            {
              "status": "affected",
              "version": "24.3.30"
            },
            {
              "status": "affected",
              "version": "25.3.1"
            },
            {
              "status": "affected",
              "version": "6.5.352"
            },
            {
              "status": "affected",
              "version": "24.4.30"
            },
            {
              "status": "affected",
              "version": "24.2.21"
            },
            {
              "status": "affected",
              "version": "25.4.1"
            },
            {
              "status": "affected",
              "version": "25.2.2"
            },
            {
              "status": "affected",
              "version": "25.2.15"
            },
            {
              "status": "affected",
              "version": "7.2.0"
            },
            {
              "status": "affected",
              "version": "7.0.0"
            },
            {
              "status": "affected",
              "version": "25.2.30"
            },
            {
              "status": "affected",
              "version": "6.5.353"
            },
            {
              "status": "affected",
              "version": "26.1.1"
            },
            {
              "status": "affected",
              "version": "25.1.30"
            },
            {
              "status": "affected",
              "version": "25.3.15"
            },
            {
              "status": "affected",
              "version": "26.2.100"
            },
            {
              "status": "affected",
              "version": "25.4.2"
            },
            {
              "status": "affected",
              "version": "26.2.1"
            },
            {
              "status": "affected",
              "version": "25.4.30"
            },
            {
              "status": "affected",
              "version": "26.1.2"
            },
            {
              "status": "affected",
              "version": "25.4.201"
            },
            {
              "status": "affected",
              "version": "26.2.101"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "As part of Cisco\u0027s ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-20275 are related to incorrect calculation issues that are grouped under the Common Weakness Enumeration (CWE) CWE-682."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-682",
              "description": "Incorrect Calculation",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T03:56:00.977Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-hardening-iosxr-qg64NcM",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxr-qg64NcM"
        }
      ],
      "source": {
        "advisory": "cisco-sa-hardening-iosxr-qg64NcM",
        "defects": [
          "CSCwu14834"
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco IOS XR Software Security Hardening Release: September 2026"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-20275",
    "datePublished": "2026-09-02T16:13:46.768Z",
    "dateReserved": "2025-10-08T11:59:15.403Z",
    "dateUpdated": "2026-09-16T03:56:00.977Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

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.

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.