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CVE-2025-50334

Good to know:

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Date: January 7, 2026

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

Severity Score

Related Resources (7)

https://github.com/TechnitiumSoftware/DnsServer/blob/v13.3/DnsServerCore/Dns/DnsServer.cs
https://nvd.nist.gov/vuln/detail/CVE-2025-50334
https://github.com/FPokerFace/Security-Advisory/tree/main/CVE-2025-50334
https://github.com/TechnitiumSoftware/DnsServer/commit/7229b217238213cc6275eea68a7e17d73df1603e
https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md
http://technitium.com
https://www.mend.io/vulnerability-database/CVE-2025-50334

Severity Score

Weakness Type (CWE)

Allocation of Resources Without Limits or Throttling

CWE-770

Top Fix

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Upgrade Version

Upgrade to version https://github.com/TechnitiumSoftware/DnsServer.git - v14.0.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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