CVE-2025-26646

Publication date 13 May 2025

Last updated 26 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.0 · High

Score breakdown

Description

External control of file name or path in .NET, Visual Studio, and Build Tools for Visual Studio allows an authorized attacker to perform spoofing over a network.

Read the notes from the security team

Status

Package Ubuntu Release Status
dotnet6 25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy
Vulnerable, fix deferred
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
dotnet7 25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Ignored see notes
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
dotnet8 25.10 questing
Fixed 8.0.116-8.0.16-0ubuntu1
25.04 plucky
Fixed 8.0.116-8.0.16-0ubuntu1~25.04.1
24.10 oracular
Fixed 8.0.116-8.0.16-0ubuntu1~24.10.1
24.04 LTS noble
Fixed 8.0.116-8.0.16-0ubuntu1~24.04.1
22.04 LTS jammy
Fixed 8.0.116-8.0.16-0ubuntu1~22.04.1
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
dotnet9 25.10 questing
Fixed 9.0.106-9.0.5-0ubuntu1
25.04 plucky
Fixed 9.0.106-9.0.5-0ubuntu1~25.04.1
24.10 oracular
Fixed 9.0.106-9.0.5-0ubuntu1~24.10.1
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

Notes

iconstantin

.NET 7 is end of life upstream.

mdeslaur

Marking .NET 6 as deferred until information is available to determine if it is impacted.

Severity score breakdown

Parameter Value
Base score 8.0 · High
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references