PT-2026-7455 · Amd · Amd Sev Firmware

Published 2025-01-01 · Updated 2026-02-10 · CVE-2025-52536

Positive Technologies (AI Summary)

CVSS v4.0

6.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions AMD SEV Firmware (affected versions not specified)

Description A flaw exists in SEV firmware where improper prevention of lock bit modification could allow a privileged attacker to downgrade the firmware, potentially leading to a loss of integrity.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-1231

Related Identifiers

BDU:2026-01982

CVE-2025-52536

Affected Products

Amd Sev Firmware

References · 9

• https://cve.org/CVERecord?id=CVE-2025-52536 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-52536 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-52536 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2025-52536 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01982 · Security Note
• https://ubuntu.com/security/CVE-2025-52536 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-52536 · Vendor Advisory
• https://t.me/CVEtracker/44347 · Telegram Post
• https://amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html · Note