CVE-2025-12899

MEDIUM

6.5

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.

CVE Details

CVSS v3.1 Score6.5

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/30/2026

Last Modified2/4/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-843

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c2vg-hj83-c2vg(vulnerabilities@zephyrproject.org)

IOC Correlations

No correlations recorded

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