Vulnerability · Published May 9, 2023 · Assigned by AMD
CVE-2021-46763
High 7.5
In plain English
A high-severity out-of-bounds write 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 0.5% (higher than 43% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 57.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Insufficient input validation in the SMU may enable a privileged attacker to write beyond the intended bounds of a shared memory buffer potentially leading to a loss of integrity.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AMD | 2nd Gen AMD EPYC™ | various |
| AMD | 3rd Gen AMD EPYC™ | various |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N