Title is not correct. Microsoft didn't patch a lot of this, they're reporting patches for dependencies that other people patched and Microsoft are inheriting.

For example, Mariner (now branded Azure Linux) is a Microsoft-supported Linux distribution. So in this list of 570 vulnerabilities, Microsoft have reported 100 vulnerabilities inherited from all sorts of open source software projects included in their Azure Linux distribution. The OpenSSH vulnerabilities are described in better detail at https://www.openssh.org/releasenotes.html where it implies 2 vulnerabilities were detected with Swival Security Scanner (using LLMs) and another 6 by other researchers/companies (using undisclosed methods).

As an example of one of the OpenSSH vulnerabilites CVE-2026-59996 which is attributed to Swival Security Scanner, Swival have published the output of their automated vulnerability detection report at https://github.com/Swival/security-audits/blob/main/openssh/...