4.6

CVE-2021-34267: st stm32cube_middleware

CVSS: 4.6v3.1MediumModified
Published 22-07-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-34267 is a medium (CVSS 4.6) vulnerability in st stm32cube_middleware. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 27.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.6/10
010
Medium · v3.1 (NVD)
EPSS score
0.36%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 22-07-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An in the USBH_MSC_InterfaceInit() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below causes a denial of service (DOS) when the system tries to communicate with the connected endpoint.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

0.00 pp

From 0.35% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.36%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Stm32Cubeh7

    Maturity: poc

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

St1 product

1 vendor · 1 product

References

1 links