Name: CVE-2026-14258: Loop with Unreachable Exit Condition
Creator: Rapid7
Published: 2026-07-01T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-14258, CWE-835, CVSS 6.5, EPSS 0.0042

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 Details

CVSS 3.1 Base Score: 6.5
CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade dhcpcd	Sep 21, 2026	Jul 1, 2026
Redhat_linux	—	Upgrade dhcpcd-debugsourceUpgrade dhcpcd-debuginfoUpgrade dhcpcd	Aug 14, 2026	Dec 1, 2024
Rocky_linux	—	Upgrade dhcpcdUpgrade dhcpcd-debuginfoUpgrade dhcpcd-debugsource	Aug 17, 2026	Aug 13, 2026

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CVSS Details

Covered by Rapid7

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