CVE-2021-34262
CVE-2021-34262 is a medium-severity vulnerability in St Stm32cube Middleware with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.
Key facts
- Severity: Medium (CVSS 3.x base score 6.8)
- CVSS v2: 4.6
- EPSS exploit prediction: 0% (38th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-120
- Affected product: St Stm32cube Middleware
- Published:
- Last modified:
Description
A buffer overflow vulnerability in the USBH_ParseEPDesc() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below allows attackers to execute arbitrary code.
Frequently asked questions
- What is CVE-2021-34262?
- A buffer overflow vulnerability in the USBH_ParseEPDesc() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below allows attackers to execute arbitrary code.
- How severe is CVE-2021-34262?
- CVE-2021-34262 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-34262 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-34262?
- CVE-2021-34262 affects St Stm32cube Middleware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-34262?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-34262 published?
- CVE-2021-34262 was published on 2021-07-22 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:st:stm32cube_middleware:*:*:*:*:*:*:*:*
More vulnerabilities in St Stm32cube Middleware
- CVE-2021-34260 — Medium (CVSS 6.8): A buffer overflow vulnerability in the USBH_ParseInterfaceDesc() function of STMicroelectronics STM32Cube Middleware…
- CVE-2021-34259 — Medium (CVSS 6.8): A buffer overflow vulnerability in the USBH_ParseCfgDesc() function of STMicroelectronics STM32Cube Middleware v1.8.0…
- CVE-2021-34268 — Medium (CVSS 4.6): An issue in the USBH_ParseDevDesc() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below causes a…
- CVE-2021-34267 — Medium (CVSS 4.6): An in the USBH_MSC_InterfaceInit() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below causes a denial…
- CVE-2021-34261 — Medium (CVSS 4.6): An issue in USBH_ParseCfgDesc() of STMicroelectronics STM32Cube Middleware v1.8.0 and below causes a denial of service…
All CVEs affecting St Stm32cube Middleware →
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