CVE-2023-31315

HIGH EPSS 45.3%
Published Aug 12, 20241y ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Aug 12, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution.

CVSS Details

Base Score
7.5
Exploitability
0.8
Impact
6.0
Vector string
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector Local
Attack Complexity High
Privileges Required High
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
45.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-94 Improper Control of Generation of Code (Code Injection) Injection

References 4

  • media.defcon.org https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Enrique%20Nissim%20Krzysztof%20Okupski%20-%20AMD%20Sinkclose%20Universal%20Ring-2%20Privilege%20Escalation.pdf
  • news.ycombinator.com https://news.ycombinator.com/item?id=41475975
  • amd.com https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7014.html
  • darkreading.com https://www.darkreading.com/remote-workforce/amd-issues-updates-for-silicon-level-sinkclose-flaw

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.