CVE-2023-20518

LOW EPSS 0.9%
Published Aug 13, 20241y ago · Modified Jun 17, 20262w ago
1.9 CVSS 3.1
Low
Find Similar
Published Aug 13, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

Incomplete cleanup in the ASP may expose the Master Encryption Key (MEK) to a privileged attacker with access to the BIOS menu or UEFI shell and a memory exfiltration vulnerability, potentially resulting in loss of confidentiality.

CVSS Details

Base Score
1.9
Exploitability
0.5
Impact
1.4
Vector string
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
Attack Vector Local
Attack Complexity High
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
0.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-459

References 2

  • amd.com https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html
  • amd.com https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5002.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.