CVE-2021-26334 AMD Chipset Driver Information Disclosure Vulnerability
A vulnerability in the AMD μProf driver allows lower-privileged users to access kernel MSRs, leading to privilege escalation and ring-0 code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-26334?
CVE-2021-26334 is a critical vulnerability in AMD μProf Tool, published on 1 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-284
Which versions are affected by CVE-2021-26334?
It affects 1 product.
Products include Amd Amd Uprof.
How do I fix CVE-2021-26334?
No fix has been published for CVE-2021-26334 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-26334 being exploited?
There is no known exploitation of CVE-2021-26334 in the wild and no public exploit code.
Other vulnerabilities in AMD μProf Tool
Sources
Also known as GHSA-4xjc-qqh2-pgwj.