System memory corruption via fTPM access control
Published Feb 11, 2025 · Updated Feb 12, 2025
Improper access control in AMD Ryzen and Athlon processor fTPM firmware allows privileged local users to corrupt system memory. AMD identifies the trusted-OS fTPM driver as the locus but does not disclose the unchecked operation or input that defeats its access control. Administrative-level local access is required, and corruption can expose or alter protected data or interrupt the system.
Summary
What happened
Improper access control in AMD Ryzen and Athlon processor fTPM firmware allows privileged local users to corrupt system memory. AMD identifies the trusted-OS fTPM driver as the locus but does not disclose the unchecked operation or input that defeats its access control. Administrative-level local access is required, and corruption can expose or alter protected data or interrupt the system.
The record
- CVE
- CVE-2023-20515
- Published
- Feb 11, 2025
- Updated
- Feb 12, 2025
- Vendor
- Advanced Micro Devices, Inc.
- Product
- AMD Ryzen™ 7000 Series Desktop Processors
- Classifications
- CWE-1284
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Feb 11, 2025CVE publishedPublication date reported by the CVE source.
- Feb 12, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo