Loop with Unreachable Exit Condition ('Infinite Loop') Affecting dhcpcd package, versions <0:10.0.6-11.el10_2


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.4% (34th percentile)

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  • Snyk IDSNYK-RHEL10-DHCPCD-18742527
  • published13 Aug 2026
  • disclosed1 Jan 2026

Introduced: 1 Jan 2026

CVE-2026-14258  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade RHEL:10 dhcpcd to version 0:10.0.6-11.el10_2 or higher.
This issue was patched in RHSA-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 RHEL. See How to fix? for RHEL: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