CVE-2025-12899

Published: Jan 30, 2026Modified: Jun 17, 2026Deferred

6.5

Vector

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

Exploitability: 3.9 / Impact: 2.5

Source: vulnerabilities@zephyrproject.org (Secondary)

Description

A flaw in Zephyr’s network stack allows an IPv4 packet containing ICMP type 128 to be misclassified as an ICMPv6 Echo Request. This results in an out-of-bounds memory read and creates a potential information-leak vulnerability in the networking subsystem.

Related CWEs

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

References (1)

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c2vg-hj83-c2vg

Source: vulnerabilities@zephyrproject.org

Timeline

No history available yet.