CVE-2021-26334
CRITICALCVSS 9.9/10EPSS 1.17%
Last modified
CVE-2021-26334 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. 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.. EPSS estimates a 1.17% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Amd | Amd Uprof | < 3.4.494 |
| Amd | Amd Uprof | < 3.4.502 |
References
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1016Mitigation, Vendor Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1016Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26334?
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.
How severe is CVE-2021-26334?
CVE-2021-26334 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26334?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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Are you affected by CVE-2021-26334?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST