CVE-2025-12899
MEDIUM EPSS 21.7%
Published Jan 30, 20265mo ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Published Jan 30, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability Low
Threat Intelligence
EPSS Exploit Probability
21.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-843
References 1
- github.com https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c2vg-hj83-c2vg
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.