CVE-2025-52536CWE-1231

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

Medium · published February 10, 2026

CVSS v4.0
6.7
EPSS
0%
Percentile
3.3
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v4.0
6.7 · MEDIUM
Vector
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
EPSS
0.00136 · 3.3th percentile
Weakness
CWE-1231 · Improper Prevention of Lock Bit Modification
Published
2026-02-10T19:09Z
EPSS history
Timeline
  • 10 FEB 19:09Z
    Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of…
    cvelistv5