PT-2026-39942 · Zephyrproject Rtos · Zephyr

Published 2026-05-12 · Updated 2026-05-12 · CVE-2026-1681

NVD

CVSS v3.1

6.1

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Issuing an ICMP ping via the net ping shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are processed inline before the current frame returns. The nested input-path frames exceed the work-queue stack and trigger a stack overflow.

Fix

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2026-1681

Affected Products

Zephyr

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-1681 · Security Note
• https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-6fcc-8rwr-w7xx · Note