Vulnerability · Published Nov 14, 2023 · Assigned by AMD
CVE-2021-46774
Medium 6.7
In plain English
A medium-severity security flaw in 1st Gen AMD EPYC™ Processors from AMD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).
Severity (CVSS 3.1)6.7Medium
Exploit odds (30 days)0.5%top 56.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AMD | Ryzen™ 3000 series Desktop Processors “Matisse" | various |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” | various |
| AMD | AMD Ryzen™ Threadripper™ 3000 Series Processors “Castle Peak” HEDT | various |
| AMD | AMD Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS SP3 | various |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors “Chagall” WS | various |
| AMD | 1st Gen AMD EPYC™ Processors | various |
| AMD | 2nd Gen AMD EPYC™ Processors | various |
| AMD | 3rd Gen AMD EPYC™ Processors | various |
| AMD | 4th Gen AMD EPYC™ Processors | various |
| AMD | AMD EPYC™ Embedded 3000 | various |
| AMD | AMD EPYC™ Embedded 7002 | various |
| AMD | AMD EPYC™ Embedded 7003 | various |
| AMD | AMD Ryzen™ Embedded 5000 | various |
| AMD | AMD EPYC™ Embedded 7002 | various |
| AMD | AMD EPYC™ Embedded 3000 | various |
| AMD | AMD EPYC™ Embedded 7003 | various |