AMD EPYC™ 7003 Series Processors: Improper Verification of Cryptographic Signature
CVE-2025-0008 is a high-severity improper verification of cryptographic signature vulnerability in AMD EPYC™ 7003 Series Processors from AMD, with a CVSS 4.0 base score of 8.4 out of 10. It can be exploited with local access to the system by an attacker with administrator privileges, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.11% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of AMD EPYC™ 7003 Series Processors you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| AMD | AMD EPYC™ 7003 Series Processors | Not specified in the record | Not stated |
| AMD | AMD EPYC™ 7002 Series Processors | Not specified in the record | Not stated |
| AMD | AMD EPYC™ 7001 Series Processors | Not specified in the record | Not stated |
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | Not specified in the record | Not stated |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors | Not specified in the record | Not stated |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors | Not specified in the record | Not stated |
| AMD | AMD EPYC™ Embedded 7003 Series Processors | Not specified in the record | Not stated |
| AMD | AMD EPYC™ Embedded 7002 Series Processors | Not specified in the record | Not stated |
| AMD | AMD EPYC™ Embedded 3000 Series Processors | Not specified in the record | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Attack requirements
- NoneThe attack does not depend on a particular deployment or configuration.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Confidentiality (vulnerable system)
- HighSerious loss of confidentiality on the vulnerable system.
- Integrity (vulnerable system)
- HighSerious loss of integrity on the vulnerable system.
- Availability (vulnerable system)
- HighSerious loss of availability on the vulnerable system.
- Confidentiality (other systems)
- NoneNo loss of confidentiality on systems beyond the vulnerable one.
- Integrity (other systems)
- NoneNo loss of integrity on systems beyond the vulnerable one.
- Availability (other systems)
- NoneNo loss of availability on systems beyond the vulnerable one.
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. Scored by CNA (amd.com).
Official description
Insufficient verification of data authenticity may allow a local attacker to bypass Secure Debug Unlock (SDU), potentially resulting in unauthorized debug access.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
More Improper Verification of Cryptographic Signature vulnerabilities (CWE-347)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in AMD EPYC™ 7003 Series Processors
- 7.0 High severity
- 8.5 High severity
- 7.0 High severity
- 7.5 High severity
- 8.3 High severity
- 8.7 High severity
Recent Improper Verification of Cryptographic Signature vulnerabilities
- 9.8 Critical severity
- 8.7 High severity
- 8.1 High severity
- 10.0 Critical severity
- 7.5 High severity
- 8.8 High severity
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