What’s Vulnerable › Vulnerabilities
CVE-2026-1681: net: Stack Overflow with Ping (to own IP Address) via Shell
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-05-12 · updated 2026-10-26
- Weakness: CWE-674
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.
Affected products
- zephyrproject zephyr: through 4.3.0
References
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