VULNERABILITY INTELLIGENCE

CVE-2021-26333

CVSS score5.5 MEDIUM

EPSS probability0.52%

CISA KEVNot currently listed

Published2021-09-21

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

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.

Weakness classification

psirt@amd.com: CWE-200
nvd@nist.gov: CWE-909

Primary references

psirt@amd.com — Third Party Advisory, VDB Entry
psirt@amd.com — Mailing List, Third Party Advisory
psirt@amd.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory