CVE-2026-26399

UNKNOWN 0.0

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

A stack-use-after-return issue exists in the Arduino_Core_STM32 library prior to version 1.7.0. The pwm_start() function allocates a TIM_HandleTypeDef structure on the stack and passes its address to HAL initialization routines, where it is stored in a global timer handle registry. After the function returns, interrupt service routines may dereference this dangling pointer, resulting in memory corruption.

Vendor	n/a
Product	n/a
Published	Apr 20, 2026
Last Updated	Apr 20, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/stm32duino/Arduino_Core_STM32/releases/tag/1.6.1 github.com: https://github.com/Acen28/CVE-2026-26399-Disclosure