Incorrect default permissions in PowerShell - CVE-2026-59119
Published: August 12, 2026
Vulnerability identifier: #VU141878
CSH Severity: Medium
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59119
CWE-ID: CWE-276
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges.
The vulnerability exists due to incorrect default permissions in PowerShell when processing controlled inputs. A local user can send controlled inputs to escalate privileges.
Successful exploitation could grant SYSTEM privileges. User interaction is required.
Affected software
PowerShell
How to mitigate CVE-2026-59119
Install security update from vendor's website.
PowerShell - update to 7.4.19.0