CVE-2025-52536

MEDIUM EPSS 3.4%

Published Feb 10, 20264mo ago · Modified Jun 17, 20261w ago

6.7 CVSS 4.0

Medium

Published Feb 10, 2026 4mo ago

Last Modified Jun 17, 2026 1w ago

Description

Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity.

CVSS Details

Base Score

6.7

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Local

Attack Complexity Low

Privileges Required High

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

3.4% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-1231

References 1

amd.com https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.