CVE-2026-50526

.NET Tampering Vulnerability

Published Jul 14, 2026 CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Description
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to perform tampering locally.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-55jh-fwmh-39m4 Microsoft Security Advisory CVE-2026-50526 – .NET Tampering Vulnerability
Ubuntu USN Ubuntu USN USN-8553-1 .NET vulnerabilities
History
Type Values Removed Values Added
First Time appeared Microsoft microsoft Visual Studio 2022
Vendors & Products Microsoft microsoft Visual Studio 2022
Type Values Removed Values Added
First Time appeared Redhat
Redhat hummingbird
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat
Redhat hummingbird
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Improper link resolution before file access ('link following') in .NET allows an authorized attacker to perform tampering locally.
Title .NET Tampering Vulnerability
First Time appeared Microsoft
Microsoft .net
Microsoft visual Studio 2022
Microsoft visual Studio 2026
Weaknesses CWE-345
CWE-59
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net
Microsoft visual Studio 2022
Microsoft visual Studio 2026
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}