I'm just in full denial that paint runs a server. Happy to be corrected if someone has a windows machine handy to verify.

But From [0]: > A total of 59 of the October CVEs fit my definition of wormable. Specifically, 57 contain both “An unauthenticated attacker could exploit this vulnerability by sending a specially crafted packet to an affected service over the network” and “No authentication or user interaction is required.”

Makes you wonder if MS is just copy-pasting boilerplate on CVEs and disclosed incorrectly the scope of the one in Paint because they had 56 other bugs to disclose.

So I'm not discounting reporting human error here, yet.

[0] https://www.zerodayinitiative.com/blog/2026/10/13/the-octobe...