VulnerabilityDeferred
CVE-2023-20518
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.
LOW 1.9EPSS 0.10%
Does this matter?
Lower severity and a low EPSS score (0.10%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 1.9 LOWCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.10% probability · 1th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-459
- Source
- psirt@amd.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.