CVE-2025-54506

medium

Description

A time-of-check to time-of-use (TOCTOU) race condition in the AMD SEV Secure Encrypted Virtualization (SEV) firmware could allow an attacker with administrative privileges to bypass security checks on scatter lists, potentially resulting in loss of guest integrity.

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3037.html

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-211294

Details

Source: Mitre, NVD

Published: 2026-11-10

Updated: 2026-11-13

Risk Information

CVSS v2

Base Score: 6.6

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:P/A:C

Severity: Medium

CVSS v3

Base Score: 7

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 4

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N

Severity: Medium

EPSS

EPSS: 0.00132