CVE-2026-1681: medium-severity vulnerability in zephyrproject-rtos Zephyr
net: Stack Overflow with Ping (to own IP Address) via Shell
Published
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.1epss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Affected products
zephyrproject-rtos · ZephyrRelated CVEs — zephyrproject-rtos Zephyr
In the same product, most dangerous first.
CVE-2023-3725HIGHPotential buffer overflow vulnerability in the Zephyr CANbus subsystemEPSS 1.3%CVE-2023-4264HIGHPotential buffer overflow vulnerabilities in the Zephyr Bluetooth subsystemEPSS 1.1%CVE-2023-0359MEDIUMipv6: Missing ipv6 nullptr-check in handle_ra_inputEPSS 0.9%CVE-2023-4257HIGHUnchecked user input length in the Zephyr WiFi shell moduleEPSS 0.9%CVE-2023-5753MEDIUMPotential buffer overflow vulnerabilities in the Zephyr Bluetooth subsystemEPSS 0.9%CVE-2023-4260MEDIUMPotential off-by-one buffer overflow vulnerability in the Zephyr FS subsystemEPSS 0.9%