CVE-2025-50334 Denial of service in n/a

High 7.5 Published 8 Jan 2026 Updated 15 Jul 2026

A remote attacker can cause a denial of service in Technitium DNS Server via the rate-limiting component.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-50334?

CVE-2025-50334 is a high-severity denial of service vulnerability in n/a, published on 8 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue in Technitium DNS Server v.13.5 allows a remote attacker to cause a denial of service via the rate-limiting component

Weakness: CWE-770

Which versions are affected by CVE-2025-50334?

It affects 1 product.

Products include Technitium Dnsserver.

How do I fix CVE-2025-50334?

No fix has been published for CVE-2025-50334 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-50334 being exploited?

There is no known exploitation of CVE-2025-50334 in the wild and no public exploit code.

Sources

Also known as GHSA-f67m-8h88-qhqh.