Dashboard / CVE-2026-54127

CVE-2026-54127

HIGH
MEDIUM Priority: 0.02 BB Relevance: 40/100
Published: 2026-07-14 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: High
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.

Weakness Classification (1)

Affected Software (9)

VendorProductVersion
Microsoft Windows 11 Version 24H2 10.0.26100.0 < 10.0.26100.8875
microsoft windows_11_24h2 < 10.0.26100.8875
microsoft windows_11_24h2 < 10.0.26100.8875
microsoft windows_11_25h2 < 10.0.26200.8875
microsoft windows_11_25h2 < 10.0.26200.8875
microsoft windows_11_26h1 < 10.0.28000.2525
microsoft windows_11_26h1 < 10.0.28000.2525
microsoft windows_server_2022 < 10.0.20348.5386
microsoft windows_server_2025 < 10.0.26100.33158

References & Advisories (1)

Bug Bounty Relevance

40 / 100
✓ No authentication
✓ No user interaction

CVSS Score

7.4 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.30%
Raw Score 0.003050
Percentile 23.3%
Date 2026-10-30

EPSS Trend

2026-10-30
0.00305
2026-10-29
0.00305
2026-10-28
0.00305

Intelligence Sources

mitre ref →

External Links