Uncontrolled Recursion Affecting zephyrproject-rtos/zephyr package, versions [,4.4.0-rc1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-ZEPHYRPROJECTRTOSZEPHYR-16642064
- published12 May 2026
- disclosed12 May 2026
- creditUnknown
Introduced: 12 May 2026
CVE-2026-1681 (opens in a new tab)How to fix?
Upgrade zephyrproject-rtos/zephyr to version 4.4.0-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Uncontrolled Recursion via the net ping shell command. An attacker can cause a stack overflow by issuing an ICMP ping to the device's own IPv4 address, which leads the network stack to recursively process echo requests and replies inline, exceeding the work-queue stack.