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Dnsserver

4 CVEs product

Monthly

CVE-2026-42255 HIGH PATCH This Week

DNS traffic amplification via cyclic nameserver delegation in Technitium DNS Server versions before 15.0 enables unauthenticated remote attackers to conduct distributed denial-of-service (DDoS) attacks. Attackers can exploit misconfigured or maliciously crafted DNS delegation chains to create resolution loops, forcing the server to generate significantly larger response traffic than the initial query size. This amplification can be weaponized against third-party victims, with the vulnerable server acting as an unwitting participant in reflection attacks. CVSS 7.2 (High) reflects network-accessible exploitation requiring no authentication, with cross-scope impact affecting availability and integrity of downstream systems.

Information Disclosure Dnsserver
NVD GitHub VulDB
CVSS 3.1
7.2
EPSS
0.0%
CVE-2025-50334 HIGH POC PATCH This Week

An issue in Technitium DNS Server v.13.5 allows a remote attacker to cause a denial of service via the rate-limiting component [CVSS 7.5 HIGH]

DNS Denial Of Service Dnsserver Red Hat
NVD GitHub
CVSS 3.1
7.5
EPSS
0.1%
CVE-2024-56089 HIGH This Week

An issue in Technitium through v13.2.2 enables attackers to conduct a DNS cache poisoning attack and inject fake responses by reviving the birthday attack.

Code Injection Dnsserver
NVD GitHub
CVSS 3.1
7.5
EPSS
0.0%
CVE-2024-56946 MEDIUM PATCH This Month

Denial of service in DNS-over-QUIC in Technitium DNS Server <= v13.2.2 allows remote attackers to permanently stop the server from accepting new DNS-over-QUIC connections by triggering unhandled. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Denial Of Service Dnsserver
NVD GitHub
CVSS 3.1
5.3
EPSS
0.9%
EPSS 0% CVSS 7.2
HIGH PATCH This Week

DNS traffic amplification via cyclic nameserver delegation in Technitium DNS Server versions before 15.0 enables unauthenticated remote attackers to conduct distributed denial-of-service (DDoS) attacks. Attackers can exploit misconfigured or maliciously crafted DNS delegation chains to create resolution loops, forcing the server to generate significantly larger response traffic than the initial query size. This amplification can be weaponized against third-party victims, with the vulnerable server acting as an unwitting participant in reflection attacks. CVSS 7.2 (High) reflects network-accessible exploitation requiring no authentication, with cross-scope impact affecting availability and integrity of downstream systems.

Information Disclosure Dnsserver
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH POC PATCH This Week

An issue in Technitium DNS Server v.13.5 allows a remote attacker to cause a denial of service via the rate-limiting component [CVSS 7.5 HIGH]

DNS Denial Of Service Dnsserver +1
NVD GitHub
EPSS 0% CVSS 7.5
HIGH This Week

An issue in Technitium through v13.2.2 enables attackers to conduct a DNS cache poisoning attack and inject fake responses by reviving the birthday attack.

Code Injection Dnsserver
NVD GitHub
EPSS 1% CVSS 5.3
MEDIUM PATCH This Month

Denial of service in DNS-over-QUIC in Technitium DNS Server <= v13.2.2 allows remote attackers to permanently stop the server from accepting new DNS-over-QUIC connections by triggering unhandled. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Denial Of Service Dnsserver
NVD GitHub

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