What’s Vulnerable › Vulnerabilities

CVE-2025-50334

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-08 · updated 2026-07-15
• Weakness: CWE-770

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

Affected products

• Technitium DnsServer: before 14.0 — fixed in 14.0

How to fix

Upgrade to a fixed version: Technitium DnsServer 14.0. Check the vendor advisory for mitigations.

References

• https://github.com/FPokerFace/Security-Advisory/tree/main/CVE-2025-50334
• https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md
• https://github.com/TechnitiumSoftware/DnsServer/blob/v13.3/DnsServerCore/Dns/DnsServer.cs
• https://github.com/TechnitiumSoftware/DnsServer/commit/7229b217238213cc6275eea68a7e17d73df1603e
• https://access.redhat.com/security/cve/CVE-2025-50334
• https://bugzilla.redhat.com/show_bug.cgi?id=2428058
• https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-50334.json

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