An issue in Technitium DNS Server v.13.5 allows a remote attacker to cause a denial of service via the rate-limiting component
https://github.com/TechnitiumSoftware/DnsServer/commit/7229b217238213cc6275eea68a7e17d73df1603e
https://github.com/TechnitiumSoftware/DnsServer/blob/v13.3/DnsServerCore/Dns/DnsServer.cs
https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md
https://github.com/FPokerFace/Security-Advisory/tree/main/CVE-2025-50334