ZDI-26-414: Microsoft PowerShell Help Directory Traversal Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft PowerShell. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-40400.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-26-414?
The ZDI-26-414 vulnerability has a CVSS rating of 7.8, indicating a high severity level.
How do I fix ZDI-26-414?
To mitigate ZDI-26-414, users should ensure they are using the latest version of Microsoft PowerShell with all security patches applied.
What type of attack does ZDI-26-414 allow?
ZDI-26-414 allows remote code execution attacks when users visit a malicious page or open a malicious file.
Is user interaction required to exploit ZDI-26-414?
Yes, user interaction is required for ZDI-26-414 as the target must visit a malicious page or open a malicious file.
Which software is affected by ZDI-26-414?
The vulnerability ZDI-26-414 affects Microsoft PowerShell installations.