PT-2026-39942 · Zephyrproject Rtos · Zephyr

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

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

Description 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. Since 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. This leads to nested input-path frames that exceed the work-queue stack, triggering a stack overflow.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2026-1681

Affected Products

Zephyr

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-1681 · Security Note
• https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-6fcc-8rwr-w7xx · Note
• https://t.me/CVEtracker/53463 · Telegram Post
• https://t.me/cveNotify/163180 · Telegram Post