CVE-2026-26143
Microsoft PowerShell Security Feature Bypass Vulnerability
- State
- Published
- Severity
- 7.8 High
- Published
- Apr 14, 2026
- Updated
- Oct 15, 2026
- Reserved
- Feb 11, 2026
Description
Improper input validation in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | 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 | microsoft |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
PowerShell 7.4Microsoft |
|
PowerShell 7.5Microsoft |
|
References
- Microsoft PowerShell Security Feature Bypass Vulnerabilityvendor-advisorypatch
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