CVE-2021-34260

6.8 mediumEPSS 0.5%

Medium (6.8) in st stm32cube middleware. EPSS 0.5% chance of exploitation in the next 30 days.

A buffer overflow vulnerability in the USBH_ParseInterfaceDesc() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below allows attackers to execute arbitrary code.

Severity

CVSS 3.1

6.8 medium

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2021-07-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

st:stm32cube_middleware

References

https://github.com/STMicroelectronics/STM32CubeH7/issues/83
https://github.com/STMicroelectronics/STM32CubeH7/issues/83

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