CVE-2025-50334

Technitium DNS Server v.13.5 is vulnerable to a denial of service (DoS) attack due to an issue in its rate-limiting component . A remote attacker can exploit this flaw to impact the availability of the DNS service. At this time, no newer version containing a fix has been officially disclosed in t...

CVE-2023-49203

Technitium version 11.5.3 is vulnerable to a denial of service attack via bandwidth amplification . The issue is caused by a DNSBomb manipulation that allows remote attackers to accumulate low-rate DNS queries, triggering a burst of large-sized responses. While a sighting of this vulnerability wa...

CVE-2024-56946

Summary: CVE-2024-56946 is a denial-of-service affecting Technitium DNS Server up to version 13.2.2, caused by unhandled exceptions in listener threads for DNS-over-QUIC. Affected software/version : Technitium DNS Server

CVE-2023-28451

Technitium DNS Server version 11.0.2 is vulnerable to a DNS resolving software flaw known as BadDNS . The vulnerability allows an attacker to trigger a resolver to ignore valid responses, resulting in a denial of service (DoS) for normal resolution. The impact is significant because an attacker c...

CVE-2023-28455

An issue in Technitium DNS Server versions through 11.0.2 allows attackers to exploit the forwarding mode to create a query loop using Technitium resolvers. This vulnerability can be used to launch amplification attacks , potentially leading to a denial-of-service (DoS) condition. As a temporary ...

CVE-2023-28456

Technitium DNS Server versions through 11.0.2 are vulnerable to a network amplification issue. This flaw allows attackers to launch amplification attacks with a factor three times higher than other software like BIND, potentially leading to a Denial of Service (DoS) . To resolve this issue, users...

CVE-2023-28457

The Technitium DNS Server (an open-source authoritative and recursive DNS server) is vulnerable in versions through 11.0.3 due to a DNS cache poisoning flaw. This issue allows an attacker to inject fake DNS responses within a 1-second window, which is considered a high-impact integrity threat. Wh...

CVE-2026-42255

Technitium DNS Server shows a vulnerability in versions before 15.0: DNS traffic amplification via cyclic name server delegation. The CVE-2026-42255 entry documents this issue (CVSS v3.1 base score 7.2, HIGH) with network-attack potential and no user interaction. Affected component is the DNS ser...

CVE-2024-56089

An issue in Technitium DNS Server through version 13.2.2 and earlier allows attackers to conduct a DNS cache poisoning attack. The root cause is the revival of the birthday attack , which enables the injection of fake responses . The impact is a high integrity risk as it can lead to the delivery ...