🛡️ CVE-2026-26399
🟡 CVSS 5.3 — Medium ✅ No Known Exploit CWE-562 NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE CWE-562
Public Exploit ✅ No
Source NVD
Published 2026-04-20
Updated 2026-06-02
Modified 2026-04-22
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown

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