CVE-2025-12899CWE-843
CVE-2025-12899
Medium · published January 30, 2026
What it is
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.
The record
Technical detail
- CVSS v3.1
- 6.5 · MEDIUM
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- CVSS v4.0
- Not supplied
- EPSS
- 0.00339 · 26.1th percentile
- Weakness
- CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')
- Published
- 2026-01-30T11:16Z
References (1)
EPSS history
Timeline