External Control of File Name or Path in Microsoft products - CVE-2025-26646

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU109148

External Control of File Name or Path in Microsoft products - CVE-2025-26646

Published: May 13, 2025


Vulnerability identifier: #VU109148
CSH Severity: Medium
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-26646
CWE-ID: CWE-73
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise th target system.

The vulnerability exists due to external control of file name or path in .NET, Visual Studio and Build Tools for Visual Studio. A remote user can perform spoofing attack on the system.


Affected software

Build Tools for Visual Studio
.NET
.NET for macOS
.NET for Linux
Visual Studio
Red Hat Enterprise Linux for IBM z Systems
Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for x86_64
dotnet8.0 (Red Hat package)
dotnet9.0 (Red Hat package)

How to mitigate CVE-2025-26646

Install updates from vendor's website.

.NET - addressed in versions 8.0.16, 9.0.5
.NET for macOS - addressed in versions 8.0.16 8.0.16, 9.0.5 9.0.5
.NET for Linux - addressed in versions 8.0.16 8.0.16, 9.0.5 9.0.5
Visual Studio - addressed in versions 17.8.21 17.8.21, 17.10.14 17.10.14, 17.12.8 17.12.8, 17.13.7 17.13.7
dotnet8.0 (Red Hat package) - addressed in versions 8.0.116-1.el8_10, 8.0.116-1.el9_6, 8.0.116-1.el10_0
dotnet9.0 (Red Hat package) - addressed in versions 9.0.106-1.el8_10, 9.0.106-1.el10_0

External References

Related Security Bulletins