CVEvulnerability

CVE-2026-26399

5.3 MEDIUM Published 2026-04-20 Modified 2026-06-17 Official page ↗
Status
Awaiting Analysis
Published
2026-04-20
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.3 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weaknesses
CWE-562

Description

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.

Related

Weakness · CWE (1)

  • CWE-562 Return of Stack Variable Address weakness

References