CVE-2026-1681 — MEDIUM (6.1)

Vulnerability 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. 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.

CVSS Score

6.1

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

HIGH

Related Weaknesses (CWE)

CWE-674

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-6fcc-8rwr-

FAQ

What is CVE-2026-1681?

CVE-2026-1681 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 de...

How severe is CVE-2026-1681?

CVE-2026-1681 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-1681?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.