PoC Index85,092 CVEs with PoCs

CVE-2026-26399

MEDIUM 5.3EPSS 0.1%

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.

CVSS v3.1 CNA
5.3 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS
0.14% chance of exploitation in the next 30 days, 3rd percentile
Published
2026-04-20
Updated
2026-04-22

Proof-of-concept exploits (1)

References