Vulnerability · Published Nov 16, 2021 · Assigned by AMD
CVE-2021-26338
High 7.5
In plain English
A high-severity improper access control in 2nd Gen AMD EPYC™ from AMD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)0.9%top 39.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Improper access controls in System Management Unit (SMU) may allow for an attacker to override performance control tables located in DRAM resulting in a potential lack of system resources.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AMD | 2nd Gen AMD EPYC™ | unspecified – before RomePI-SP3_1.0.0.C |
| AMD | 3rd Gen AMD EPYC™ | unspecified – before MilanPI-SP3_1.0.0.4 |
Weakness: CWE-284