Denial of Service Vulnerability in Technitium DNS Server by Technitium
CVE-2025-50334

7.5HIGH

Key Information:

Vendor

Technitium

Status
Technitium DNS Server
Vendor
CVE Published:
8 January 2026

What is CVE-2025-50334?

A vulnerability in Technitium DNS Server version 13.5 allows a remote attacker to initiate a denial of service attack by exploiting weaknesses in the rate-limiting mechanism. This could lead to service unavailability, impacting the performance and reliability of DNS resolutions. It is crucial for users to be aware of this issue and implement necessary mitigations to safeguard their systems from potential exploitation.

References

https://github.com/TechnitiumSoftware/DnsServer/blob/mast...
http://technitium.com
https://github.com/TechnitiumSoftware/DnsServer/blob/v13....

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.