CVE-2021-26333 json
AMD Chipset Driver Information Disclosure Vulnerability
published 5y ago modified 4mo ago also EUVD-2021-13139
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- AMD PSP Driver 5.17.0.0
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5mo ago
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:C/I:N/A:N |
Affected products
- AMD PSP Driver
Classification
References
-
amd.com
/en/corporate/product-security/bulletin/amd-sb-1009
vendor-advisory
-
seclists.org
/fulldisclosure/2021/Sep/24
mailing-list, third-party-advisory
-
packetstormsecurity.com
/files/164202/AMD-Chipset-Driver-Information-Disclosure-Memory-Leak.html
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-26333
- NVD CVE-2021-26333
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