CVE-2025-52536 describes an improper prevention of Lock Bit modification within SEV firmware, allowing a highly privileged attacker to downgrade firmware, potentially compromising system integrity. With a CVSS score of 6.7 (MEDIUM), this vulnerability requires local access and high privileges to exploit, but could lead to a significant loss of integrity. There is currently no known active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| AMD | AMD EPYC™ 7003 Series Processors | Range not provided by sourceCNA affecteddefault affected | |
| AMD | AMD EPYC™ 8004 Series Processors | Range not provided by sourceCNA affecteddefault affected | |
| AMD | AMD EPYC™ 9004 Series Processors | Range not provided by sourceCNA affecteddefault affected | |
| AMD | AMD EPYC™ 9005 Series Processors | Range not provided by sourceCNA affecteddefault affected | |
| AMD | AMD EPYC™ Embedded 7003 Series Processors | Range not provided by sourceCNA affecteddefault affected |
CVSS version used by this source: 4.0
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
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.