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Case File

CVE-2021-42553

MEDIUM · CVSS 6.8 EPSS 1.02% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-10-21 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-42553
Severity
MEDIUM
CVSS
6.8
EPSS
1.02%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)