CVE-2026-1681 MEDIUM

CVE-2026-1681: net: Stack Overflow with Ping (to own IP Address) via Shell

Vendor Zephyrproject-Rtos
Product Zephyr
Weakness CWE-674
Published May 12, 2026
Last update May 12, 2026

CVSS base score

6.1/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 12, 2026 CVE published
May 12, 2026 Record updated