CVE-2025-12899net: icmp: Out of bound memory read
Updated under an hour ago ()
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It affects zephyrproject-rtos Zephyr. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- Weakness (CWE)
- CWE-843
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- zephyr
- NVD analysis
- Deferred
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
zephyrproject-rtos Zephyr zephyrproject_rtos:zephyr (from the name) | before 3.7.2; from 4.0.0 before 4.2.2 | CNA record |
References
- https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c2vg-hj83-c2vg
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.