CVE-2026-14258

CVE Enrichment

CVSS: 6.5 MEDIUM
EPSS: 0.42%
EPSS Percentile: 34.98%
CISA KEV: Not listed

Description

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 01-Jul-2026 18:16
Last Modified: 12-Aug-2026 23:16
EPSS Date: 2026-10-20
CWE: CWE-835

CVSS Vector


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

References

Last enrichment sync: 01-Nov-2026 20:22
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

dhcpcd discards IPv6 router advertisements carrying zero-length Neighbor Discovery options, CVE-2026-14258, and dnsmasq fixes a buffer overflow and an out of bounds read, CVE-2026-12725 and CVE-2026-12969. Debian 13.7 Bundles 92 Security Advisories and Updates 106 Packages

CVE (19)

Products (18)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.