CVE-2026-77892

medium

Assigned by CNA: microsoft

Published 2026-09-08 · Modified 2026-09-08

Discuss on Community Propose mitigation

CVSS v3

6.8

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

6.8

Description

No cwe for this issue in Windows Boot Manager allows an unauthorized attacker to elevate privileges with a physical attack.

Predictions

Exploit likelihood

67%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77892

CWEs

CWE-693

Community-verified mitigations for this CVE will appear above when contributors publish them.

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