SB2026041548 - Remote code execution in Microsoft PowerShell
Published: April 15, 2026
Security Bulletin ID
SB2026041548
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2026-26143)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied input in Microsoft PowerShell. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the system.
Remediation
Install update from vendor's website.