CVE-2025-12899
net: icmp: Out of bound memory read
- State
- Published
- Severity
- 6.5 Medium
- Published
- Jan 30, 2026
- Updated
- Oct 13, 2026
- Reserved
- Nov 7, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L | zephyr |
Weaknesses
- CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
Affected Products
| Product | Versions |
|---|---|
Zephyrzephyrproject-rtos |
|
References
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