CVE-2026-26143
HIGHMicrosoft PowerShell Security Feature Bypass Vulnerability
Title source: cnaDescription
Improper input validation in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
patch
Microsoft PowerShell Security Feature Bypass Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26143
Scores
CVSS v3
7.8
EPSS
0.0054
EPSS Percentile
40.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 (3)
microsoft/powershell
7.4 - 7.4.14
Microsoft/PowerShell 7.4
7.4.0 - 7.4.14
Microsoft/PowerShell 7.5
7.5.0 - 7.5.5
Published
Apr 14, 2026
Tracked Since
Apr 14, 2026