Skip to content
OpenAdvisories
High MSRC-CVE-2025-21171 1 CVE

.NET Remote Code Execution Vulnerability

Published Jan 14, 2025 · Updated Jan 29, 2025 · Revision 2

Summary

Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

According to the CVSS metric, the attack vector is network (AV:N) and the user interaction is required (UI:R). What is the target context of the remote code execution?
This attack requires a victim to perform a specific action, such as copying files or executing a command, and for an attacker with appropriate access to have pre-planted malicious files with knowledge of where they should be placed on the victim's system.

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
This attack requires a victim to perform a specific action, such as copying files or executing a command, and for an attacker with appropriate access to have pre-planted malicious files with knowledge of where they should be placed on the victim's system.

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
Exploitation of this vulnerability requires that a user trigger the payload in the application.

Security updates
7.5.0 — https://github.com/PowerShell/Announcements/issues/72
9.0.1 — https://support.microsoft.com/help/5050526
17.12.4 — https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes

Vulnerabilities 1

Revision history

  1. #2

    Revised the Security Updates table to include PowerShell 7.5 installed on Windows, PowerShell 7.5 installed on Linux, and PowerShell 7.5 installed on MacOC because these versions of PowerShell 7 are affected by this vulnerability. See [https://github.com/PowerShell/Announcements/issues/72](https://github.com/PowerShell/Announcements/issues/72) for more information.

  2. #1

    Information published.

References