Use After Free Affecting zephyrproject-rtos/zephyr package, versions [4.0.0,]
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-17669868
- published29 Jun 2026
- disclosed28 Jun 2026
- creditUnknown
Introduced: 28 Jun 2026
CVE-2026-10646 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Use After Free in the zsock_getaddrinfo function when a timed-out DNS query is retried without cancellation. An attacker can cause memory corruption or denial of service by sending spoofed or replayed network responses that trigger callbacks referencing out-of-scope stack memory.