Division by zero Affecting zephyrproject-rtos/zephyr package, versions [1.8.0,4.3.1)[4.4.0,4.4.2-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-18302789
- published25 Jul 2026
- disclosed22 Jul 2026
- creditUnknown
Introduced: 22 Jul 2026
CVE-2026-10679 (opens in a new tab)How to fix?
Upgrade zephyrproject-rtos/zephyr to version 4.3.1, 4.4.2-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Division by zero in the spi_dw_configure process. An attacker can cause a kernel fault and disrupt system availability by supplying a zero value for the frequency parameter via the spi_transceive syscall from an unprivileged userspace thread that has been granted access to a DesignWare SPI device kernel object. This is only exploitable if CONFIG_USERSPACE=y is enabled and the thread has SPI driver permission.