CVE-2026-105009

HIGH
MEDIUM Priority: 0.02 BB Relevance: 20/100
Published: 2026-10-13 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Local
AC: High
PR: Low
UI: Required
S: Changed
C: High
I: High
A: High

Description

Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.

Affected Software (7)

VendorProductVersion
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26434
microsoft windows_server_2012 -
microsoft windows_server_2012 r2
microsoft windows_server_2016 < 10.0.14393.9612
microsoft windows_server_2019 < 10.0.17763.9376
microsoft windows_server_2022 < 10.0.20348.5761
microsoft windows_server_2025 < 10.0.26100.33650

References & Advisories (1)

Bug Bounty Relevance

20 / 100

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.32%
Raw Score 0.003200
Percentile 24.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00320
2026-10-28
0.00320

Intelligence Sources

mitre ref →
nvd ref →