AMD Chipset Driver Information Disclosure Vulnerability
Priority LOW 25CWE-200Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00517 44th percentileScored 2026-11-07
Fix Fixed PSP Driver (AMD): 5.17.0.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| AMD | PSP Driver | PSP Driver to before 5.17.0.0 | 5.17.0.0 | Patch available | CNA |
- PSP Driver VendorAMD Affected PSP Driver to before 5.17.0.0 Fixed in 5.17.0.0 Patch available CNA
Remediation
- Fix · CNA PSP Driver (AMD) Fixed in 5.17.0.0
Timeline
- 2026-10-02 Threatist record created from CVE-2021-26333
- 2026-10-03 Alias added: GHSA-rw97-q7v4-xhhq
References
Sources
- CVE-2021-26333 · CVE Program
- CVE-2021-26333 · NVD
- FIRST EPSS
- GHSA-rw97-q7v4-xhhq · GitHub Advisory Database · CC BY 4.0
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