CVE-2025-52536 | BDVDB-2026-314649 Detail

AMDAMD EPYC™ 9004 Series Processors

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.

Impact#

Per CVSS v4.0: confidentiality impact none, integrity impact high, availability impact none. Attack vector: local.

Weaknesses#

CWE-1231 Improper Prevention of Lock Bit Modification

References#

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

Exploit#

No public exploit known

History#

Version 12026-02-10Record published in the CVE List.

Published

Published: 2026-02-10
Last modified: 2026-02-10

Vendor information

Vendor: AMD
Product: AMD EPYC™ 9004 Series Processors

All AMD vulnerabilities

Score

6.7 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 5.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Not stated
Fixed
GenoaPI 1.0.0.G

Scoring System

CVSS v4.0

6.7 Medium

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

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Attack Requirements	None
Privileges Required	High
User Interaction	None
Vulnerable System Confidentiality	None
Vulnerable System Integrity	High
Vulnerable System Availability	None
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).