Information disclosure in AMD Chipset Driver
CVE-2021-26333
An information disclosure vulnerability exists in AMD Platform Security Processor (PSP) chipset driver. The discretionary access control list (DACL) may allow low privileged users to open a handle and send requests to the driver resulting in a potential data leak from uninitialized physical pages.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (41.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- AMD Chipset Driver
- AMD Psp Driver — versions PSP Driver
- AMD Psp Driver
Weakness classification (CWE)
Public proof-of-concept exploits
References
- seclists.org/fulldisclosure/2021/Sep/24 (mailing-list, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/164202/AMD-Chipset-Driver-Information-Disclosure-… (VDB Entry, Third Party Advisory)
- www.amd.com/en/corporate/product-security/bulletin/amd-sb-1009 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-26333?
- CVE-2021-26333 is a medium-severity vulnerability in AMD Chipset Driver, classified under Information Disclosure. CVSS score: 5.5/10. Published 2021-09-21.
- How severe is CVE-2021-26333?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-26333 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.