PowerShell Elevation of Privilege Vulnerability in Microsoft Software
CVE-2026-59119

7.3HIGH

Key Information:

Vendor

Microsoft
Status
Powershell 7.4
Powershell 7.5
Powershell 7.6
Vendor
CVE Published:
11 August 2026

What is CVE-2026-59119?

A vulnerability in Microsoft PowerShell can lead to elevation of privileges due to incorrect default permissions. An attacker with valid credentials can exploit this flaw to gain higher access rights locally, potentially allowing unauthorized actions on the system. Users and administrators should review the permissions configuration within PowerShell to mitigate risk and apply any related security updates released by Microsoft.

Affected Version(s)

PowerShell 7.4 7.4.0 < 7.4.19.0

PowerShell 7.5 7.5.0 < 7.5.10.0

PowerShell 7.6 7.6.0 < 7.6.5

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.