CVE-2026-85818 | Microsoft Windows up to Server 2025 Schannel signature verification

A vulnerability was found in Microsoft Windows up to Server 2025. It has been declared as very critical. Affected by this issue is some unknown functionality of the component Schannel. Such manipulation leads to improper verification of cryptographic signature.

This vulnerability is uniquely identified as CVE-2026-85818. The attack can be launched remotely. No exploit exists.

It is best practice to apply a patch to resolve this issue.VulDB Recent EntriesRead More