CVE-2026-0390

medium

Published 2026-04-14 · Modified 2026-05-27

CVSS v3

6.7

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS v2

—

VIR risk

6.7

Description

Reliance on untrusted inputs in a security decision in Windows Boot Loader allows an authorized attacker to bypass a security feature locally.

Predictions

Exploit likelihood

66%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-0390

CWEs

CWE-807

Verify integrity in audit chain (admin only). AS-IS.