CVE-2026-14258

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Source

https://cve.org/CVERecord?id=CVE-2026-14258

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-14258.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-14258

Downstream

Related

ALSA-2026:54210

Published

2026-07-01T09:24:51Z

Modified

2026-10-27T02:31:06Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

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

Details

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.

Database specific

{
    "cna_assigner":  "redhat",
    "cwe_ids":  [
        "CWE-835"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14258.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "fixed":  "0:10.0.6-11.el10_2"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "InverseAffectedRanges"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/networkconfiguration/dhcpcd

Affected ranges

Type

GIT

Repo

https://github.com/networkconfiguration/dhcpcd

Events

Introduced

Fixed

75289ca

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "fixed":  "75289ca"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-14258.json"