What’s Vulnerable › Vulnerabilities

CVE-2021-34268

• Severity: medium (CVSS 4.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-22 · updated 2026-06-17

Description

An issue in the USBH_ParseDevDesc() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below causes a denial of service (DOS) via a malformed USB device packet.

Affected products

• Stm32Cube Middleware: through 1.8.0

References

• https://github.com/STMicroelectronics/STM32CubeH7/issues/75
• https://github.com/STMicroelectronics/STM32CubeH7/issues/75

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