CVE-2023-20531: amd 2nd gen epyc

Vulnerability summary

CVE-2023-20531 is a high (CVSS 7.5) vulnerability in amd 2nd gen epyc. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.5% of scored vulnerabilities.

Timeline

1. 10-01-2023
   PublishedVulnerability first disclosed.
2. 07-04-2025
   Last modifiedVulnerability information updated.

Description

Insufficient bound checks in the SMU may allow an attacker to update the SRAM from/to address space to an invalid value potentially resulting in a denial of service.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.