CVE-2026-26143
Microsoft PowerShell Security Feature Bypass Vulnerability
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
Improper input validation in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.
| Vendor | microsoft |
| Product | powershell 7.4 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Apr 14, 2026 |
| Last Updated | Apr 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / PowerShell 7.4
7.4.0 < 7.4.14
Microsoft / PowerShell 7.5
7.5.0 < 7.5.5