Resource exhaustion in Technitium Dnsserver
CVE-2025-50334
An issue in Technitium DNS Server v.13.5 allows a remote attacker to cause a denial of service via the rate-limiting component
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.011 (64.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: -0.000
Affected products
Weakness classification (CWE)
References
- github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md (Release Notes)
- technitium.com (Product)
- github.com/TechnitiumSoftware/DnsServer/blob/v13.3/DnsServerCore/Dns/DnsServer… (Product)
- github.com/FPokerFace/Security-Advisory/tree/main/CVE-2025-50334 (Exploit, Third Party Advisory)
- github.com/TechnitiumSoftware/DnsServer/commit/7229b217238213cc6275eea68a7e17d7… (Patch)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2025-50334?
- CVE-2025-50334 is a high-severity vulnerability in Technitium Dnsserver, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-01-08.
- How severe is CVE-2025-50334?
- High severity. CVSS v3 base score is 7.5 out of 10.