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CVE-2021-42553

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CVE-2021-42553

Published: Oct 21, 2022

Modified: May 7, 2025

PUBLISHED

CVSS v3.1

6.8

MEDIUM

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.

VendorProductVersions

STMicroelectronics STM32Cube

STM32 USB Host Library

affected
all - < 3.5.1

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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