CVE-2025-48517CWE-1220

Insufficient Granularity of Access Control in SEV firmware could allow a privileged user with a malicious hypervisor to create a SEV-ES guest with an ASID in…

Medium · published February 10, 2026

CVSS v4.0
4.6
EPSS
0%
Percentile
4.5
In the wild
Unconfirmed
What it is

Insufficient Granularity of Access Control in SEV firmware could allow a privileged user with a malicious hypervisor to create a SEV-ES guest with an ASID in the range meant for SEV-SNP guests potentially resulting in a partial loss of confidentiality.

The record
Technical detail
CVSS v4.0
4.6 · MEDIUM
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N
EPSS
0.00158 · 4.5th percentile
Weakness
CWE-1220 · Insufficient Granularity of Access Control
Published
2026-02-10T19:08Z
EPSS history
Timeline
  • 10 FEB 19:08Z
    Insufficient Granularity of Access Control in SEV firmware could allow a privileged user with a malicious hypervisor to create a SEV-ES guest with an ASID in…
    cvelistv5