CVE-2025-21173

What it is

.NET Elevation of Privilege Vulnerability

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account, but needs a user to act. High risk of data exposure, data tampering, service disruption.

Exploit odds

1.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-01-14 18:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 08:42 UTC Last updatedMost recent change to the record

Details

Published

2025-01-14 18:15 UTC

Last modified

2026-06-17 08:42 UTC

Exploit probability

1.3% · EPSS, next 30 days

Weakness

CWE-379

Record status

Modified

Affected

• Microsoft Visual Studio 2022 < 17.6.22
• Microsoft Visual Studio 2022 < 17.8.17
• Microsoft Visual Studio 2022 < 17.10.10
• Microsoft Visual Studio 2022 < 17.12.4
• Microsoft .net 8.0.0
• Microsoft .net 9.0.0

Attack profile CVSS 3.1 · 7.3

Attack vector

Local

Complexity

Low

Privileges needed

Low

User interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High