SB2026081748 - OS command injection in Microsoft PowerShell
Published: August 17, 2026
Security Bulletin ID
SB2026081748
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Command injection (CVE-ID: CVE-2026-50523)
CWE-ID: CWE-77 - Command injection
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to command injection in Microsoft PowerShell when processing command input. A local user can inject specially crafted command elements to execute arbitrary code.
Remediation
Install update from vendor's website.