CVE-2026-14258 Affecting dhcpcd package, versions <0:10.0.6-11.el10_2


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.4% (34th percentile)

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  • Snyk IDSNYK-ALMALINUX10-DHCPCD-18763991
  • published14 Aug 2026
  • disclosed12 Aug 2026

Introduced: 12 Aug 2026

CVE-2026-14258  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 dhcpcd to version 0:10.0.6-11.el10_2 or higher.
This issue was patched in ALSA-2026:54210.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dhcpcd package and not the dhcpcd package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1