CVE-2026-26170

HIGH

PowerShell Elevation of Privilege Vulnerability

Title source: cna
STIX 2.1

Description

Improper input validation in Microsoft PowerShell allows an authorized attacker to elevate privileges locally.

References (1)

Scores

CVSS v3 7.8
EPSS 0.0008
EPSS Percentile 22.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-20
Status published
Products (18)
Microsoft/Windows 10 Version 1607 10.0.14393.0 - 10.0.14393.9060
Microsoft/Windows 10 Version 1809 10.0.17763.0 - 10.0.17763.8644
Microsoft/Windows 10 Version 21H2 10.0.19044.0 - 10.0.19044.7184
Microsoft/Windows 10 Version 22H2 10.0.19045.0 - 10.0.19045.7184
Microsoft/Windows 11 version 22H3 10.0.22631.0 - 10.0.22631.6936
Microsoft/Windows 11 Version 23H2 10.0.22631.0 - 10.0.22631.6936
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.32690
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.8246
Microsoft/Windows 11 Version 25H2 10.0.26200.0 - 10.0.26200.8246
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.1836
... and 8 more
Published Apr 14, 2026
Tracked Since Apr 14, 2026