Vulnerability-Lookup

RHSA-2026:54210

Vulnerability from csaf_opensuse - Published: 2026-08-12 00:00 - Updated: 2026-08-12 00:00

Summary

security update for dhcpcd

Severity

Moderate

Notes

Title of the patch: security update for dhcpcd

Description of the patch: This security update provides a functional equivalent of RHSA-2026:54210. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2026:54210.

Patchnames: RHSA-2026:54210

CVE-2026-14258

6.5 (Medium)


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

Affected products

Recommended 1 product

Product	Identifier	Version	Remediation
Unresolved product id: SUSE Liberty Linux 10:dhcpcd-10.0.6-11.el10_2.x86_64		—	Vendor Fix

Threats

Impact moderate

References

5 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://www.suse.com/security/cve/CVE-2026-14258/	self
https://www.suse.com/security/cve/CVE-2026-14258	external
https://bugzilla.suse.com/1270026	external

JSON

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{
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    "aggregate_severity": {
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      "text": "Moderate"
    },
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        "title": "Patchnames"
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        "category": "legal_disclaimer",
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  ]
}

CVE-2026-14258 (GCVE-0-2026-14258)

Vulnerability from cvelistv5 – Published: 2026-07-01 09:24 – Updated: 2026-08-12 15:49

Title

Dhcpcd: dhcpcd infinite loop and out-of-bounds read via zero-length ipv6 nd option in router advertisement handling

Summary

A flaw was found in dhcpcd's IPv6 Neighbor Discovery Router Advertisement processing. A specially crafted IPv6 Router Advertisement containing a zero-length Neighbor Discovery option can bypass validation during packet storage and later be reparsed without adequate validation, causing the parser to enter a non-advancing loop. Successful exploitation may result in excessive CPU consumption, leading to a denial of service.

Severity

6.5 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-01 12:20 UTC

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

redhat redhat root

References

5 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:54210	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-14258	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2462305	issue-trackingx_refsource_REDHAT
https://github.com/NetworkConfiguration/dhcpcd/co…
https://github.com/NetworkConfiguration/dhcpcd/is…

Impacted products

1 product

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:10.0.6-11.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2

Date Public

2024-12-01 00:00

Credits

Red Hat would like to thank AISLE Research for reporting this issue.

Show details on NVD website

JSON

To clipboard

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                ],
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                "timestamp": "2026-07-01T12:20:39.579180Z",
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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.