Is CVE-2026-14258 actively exploited?

No active exploitation of CVE-2026-14258 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-14258 be exploited remotely?

Partially. CVE-2026-14258 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-14258?

CVE-2026-14258 has a CVSS score of 6.5 (MEDIUM).

HOME VULNERABILITIESCVE-2026-14258

MEDIUM

CVE-2026-14258

CWE-835Published: July 1, 2026· Updated: Jul 1, 2026

6.5

CVSS v3.1

EPSS:0.25%probability of exploitation in 30 daysPercentile:15.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-14258 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.