CVE-2026-62900

Imagine your application is passing along private information, but .NET accidentally leaves that information where it shouldn’t. If an attacker can reach the service over the network, they may be able to view that secret information intended only for your system. This is like leaving a confidential document where a visitor can read it through the window.

This matters if your business runs apps or development environments built on .NET (including Visual Studio 2022 or Visual Studio 2026) and you have a vulnerable .NET component in use. The risk is network-based and does not require an attacker to log in, and it’s reachable in default configurations. Act now if the vulnerable component is reachable over the network; otherwise the exposure is limited.

This should be treated as urgent because the issue is a network-reachable information leak that does not require an attacker login. Even though there’s no confirmed public exploit code and no KEV listing, the fixed versions are already available and recent patch activity indicates active attention. With a RED verdict, upgrade promptly to eliminate the chance of data exposure.