CVE-2026-26143

HIGH EPSS 41.1%
Published Apr 14, 20262mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Apr 14, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

Improper input validation in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
41.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-20 Improper Input Validation Validation

Affected Products 2

VendorProductVersionRange
microsoftpowershell*≥7.4  –  <7.4.14
microsoftpowershell*≥7.5  –  <7.5.5

References 1

  • msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26143
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.