Improper Check or Handling of Exceptional Conditions Affecting zephyrproject-rtos/zephyr package, versions [,4.2.0-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-13865269
- published10 Nov 2025
- disclosed7 Nov 2025
- creditShangzewen
Introduced: 7 Nov 2025
NewCVE-2025-12890 (opens in a new tab)How to fix?
Upgrade zephyrproject-rtos/zephyr to version 4.2.0-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Check or Handling of Exceptional Conditions via the ull_periph_setup function in the subsys/bluetooth/controller/ll_sw/ull_peripheral.c file. An attacker can cause the device to crash and become unconnectable by sending a malformed connection request with an illegal interval and specific channel map values.