CVE-2021-26334 json
AMD Chipset Driver Information Disclosure Vulnerability
published 2021-12-01 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13140
- cvss
- 9.9
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
The AMDPowerProfiler.sys driver of AMD μProf tool may allow lower privileged users to access MSRs in kernel which may lead to privilege escalation and ring-0 code execution by the lower privileged user.
Patch / fix
- AMD μProf Tool 3.4.494
Exploit prediction
1.21% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Affected products
- AMD μProf Tool
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
amd.com
/en/corporate/product-security/bulletin/amd-sb-1016
mitigation, vendor-advisory
Sources
- CVE List CVE-2021-26334
- NVD CVE-2021-26334
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.