VULNERABILITY INTELLIGENCE

CVE-2021-42553

CVSS score6.8 MEDIUM
EPSS probability1.27%
CISA KEVNot currently listed
Published2022-10-21
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs.

Weakness classification

  • nvd@nist.gov: CWE-120
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-120

Primary references