Use After Free Affecting zephyrproject-rtos/zephyr package, versions [4.2.0,]
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-17734724
- published30 Jun 2026
- disclosed30 Jun 2026
- creditUnknown
Introduced: 30 Jun 2026
CVE-2026-10655 (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 sntp_close_async process. An attacker can cause a crash of the networking thread or potentially trigger memory corruption by manipulating the timing of SNTP/NTP responses to repeatedly induce a race condition between socket closure and polling.