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CVE-2025-12899

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CVE-2025-12899

Published: Jan 30, 2026

Modified: Jan 30, 2026

PUBLISHED

CVSS v3.1

6.5

MEDIUM

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.

VendorProductVersions

zephyrproject-rtos

Zephyr

affected
* - <= 4.2

Weaknesses (CWE)

CWE-843

CVSS v3.1 Details

CVSS v3.1 Vector

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

References

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