Hacktoberfest 2026: los issues que los mantenedores marcaron para octubre, abiertos y aptos para principiantes. Explorar issues de Hacktoberfest

Microsoft Security Advisory CVE-2025-25004: PowerShell Elevation of Privilege Vulnerability

Abierto
  • ¿Algo no está bien?
#81 0 comentarios 0 reacciones 0 asignados Ver en GitHub

Nadie ha tomado este issue todavía.

Evaluación

Dificultad
5/5
Tiempo estimado
Más de una semana
Aptitud para principiantes
5/100
Tipo de issue
Error
Claridad
Necesita aclaración
Estado de actividad
Estancado
Stack tecnológico
powershell
Área
security

Línea de trabajo

This is a Microsoft advisory for CVE-2025-25004, not a code task, and the payload names no file, test or entry point. The affected-software table lists PowerShell 7.5 up to 7.5.3 and 7.4 up to 7.4.12 as vulnerable on Windows only. Security reports go to [email protected], and questions belong in a support issue, so a newcomer should not start a fix here.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

PowerShell Security

Microsoft Security Advisory CVE-2025-25004: PowerShell Elevation of Privilege Vulnerability

Executive Summary

Improper access control in PowerShell 7 allows an authorized attacker to elevate privileges locally.

System administrators are advised to update PowerShell 7 to an unaffected version (see affected software).

Discussion

Please open a support question to discuss the PowerShell aspects of this advisory.

Affected Software

The vulnerability affects PowerShell 7 prior to the following versions:

PowerShell 7 Version Affected version Patched Version
7.5 <= 7.5.3 7.5.4
7.4 <= 7.4.12 7.4.13

The vulnerability affects PowerShell when running on the following operating systems:

Operating System Affected
Windows Yes
macOS No
Linux No

Advisory FAQ

What privileges could be gained by an attacker who successfully exploited the vulnerability?

An attacker who successfully exploited this vulnerability could create, modify, or delete files in the security context of the NT AUTHORITY\SYSTEM account.

According to the CVSS metric, user interaction is required (UI:R) and privileges required is Low (PR:L). What does that mean for this vulnerability?

An authenticated attacker could place a malicious file in a specified custom module path and then wait for a user to run a privileged .NET application that starts a PowerShell session under NT AUTHORITY\SYSTEM privileges

How do I know if I am affected?

If all of the following are true:

  1. Run pwsh -v, then, check the version in the table in Affected Software to see if your version of PowerShell 7 is affected.
How do I update to an unaffected version?

Follow the instructions at Installing PowerShell 7 to install the latest version of PowerShell 7.

Updating PowerShell 7 using Microsoft Update

Updating PowerShell 7 using Microsoft Update

Mitigation factors

This only affects PowerShell sessions running as NT AUTHORITY\SYSTEM and not a standard user.

Other Information

Reporting Security Issues

If you have found a potential security issue in PowerShell 7,
please email details to [email protected].

Support

You can ask questions about this issue on GitHub in the PowerShell organization.
This is located at https://github.com/PowerShell/.
The Announcements repo (https://github.com/PowerShell/Announcements)
will contain this bulletin as an issue and will include a link to a discussion issue where you can ask questions.

Disclaimer

The information provided in this advisory is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

What if the update breaks my script or module?

You can uninstall the newer version of PowerShell 7 and install the previous version of PowerShell 7.
This should be treated as a temporary measure.
Therefore, the script or module should be updated to work with the patched version of PowerShell 7.

Acknowledgments

tsuki
Casper

Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure.

See acknowledgments for more information.

External Links

CVE-2025-25004

Revisions

V1.0 (October 21, 2025): Advisory published.

Version 1.0
Last Updated 2023-10-21

Lenguaje dominante
Sin datos de lenguaje
Estrellas
20
Forks
8
Sin PR fusionados en 30 d

Preparar el entorno

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

Más de PowerShell/Announcements

Todos los issues de PowerShell/Announcements

Issues similares

Más issues de Security

Recibe los nuevos issues en tu correo

Un resumen breve de issues de GitHub para principiantes.