Dashboard / CVE-2026-27911

CVE-2026-27911

HIGH
MEDIUM Priority: 0.01 BB Relevance: 31/100
Published: 2026-04-14 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

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

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate privileges locally.

Weakness Classification (2)

Affected Software (23)

VendorProductVersion
microsoft windows_10_1607 < 10.0.14393.9060
microsoft windows_10_1607 < 10.0.14393.9060
microsoft windows_10_1809 < 10.0.17763.8644
microsoft windows_10_1809 < 10.0.17763.8644
microsoft windows_10_21h2 < 10.0.19044.7184
microsoft windows_10_21h2 < 10.0.19044.7184
microsoft windows_10_21h2 < 10.0.19044.7184
microsoft windows_10_22h2 < 10.0.19045.7184
microsoft windows_10_22h2 < 10.0.19045.7184
microsoft windows_10_22h2 < 10.0.19045.7184
microsoft windows_11_23h2 < 10.0.22631.6936
microsoft windows_11_23h2 < 10.0.22631.6936
microsoft windows_11_24h2 < 10.0.26100.8246
microsoft windows_11_24h2 < 10.0.26100.8246
microsoft windows_11_25h2 < 10.0.26200.8246
microsoft windows_11_25h2 < 10.0.26200.8246
microsoft windows_11_26h1 < 10.0.28000.1836
microsoft windows_11_26h1 < 10.0.28000.1836
microsoft windows_server_2016 < 10.0.14393.9060
microsoft windows_server_2019 < 10.0.17763.8644
microsoft windows_server_2022 < 10.0.20348.5020
microsoft windows_server_2022_23h2 < 10.0.25398.2274
microsoft windows_server_2025 < 10.0.26100.32690

References & Advisories (1)

Bug Bounty Relevance

31 / 100
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploitation Probability

0.15%
Raw Score 0.001530
Percentile 4.4%
Date 2026-10-28

Intelligence Sources

nvd ref →

External Links