Technitium develops DNS server software that, despite a narrow product scope, operates at a critical juncture in network infrastructure where it handles authority over domain resolution for many deployments. Vulnerabilities affecting the vendor skew toward serious outcomes, with a meaningful share reaching critical severity, and recur through weakness classes centered on network amplification and resource-exhaustion conditions, as well as name-resolution logic errors that can degrade or redirect traffic. Defenders should treat DNS server patches from this vendor as priority updates given the elevated severity tendency and the vendor's position in traffic-critical infrastructure; current exploitation activity and exposure counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Technitium over time
Signals from CVEs in this vendor scope (14 CVEs).
14 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2022-30258CRITICAL An issue was discovered in Technitium DNS Server through 8.0.2 that allows variant V2 of unintended domain name resolution. A revoked domain name can still be resolvable for a long | Nov 21, 2022 | 9.8 | 31 | NO | NO |
CVE-2022-30257CRITICAL An issue was discovered in Technitium DNS Server through 8.0.2 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long | Nov 21, 2022 | 9.8 | 31 | NO | NO |
CVE-2026-42255MEDIUM Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation. | Apr 26, 2026 | 6.5 | 28 | NO | NO |
CVE-2025-50334HIGH An issue in Technitium DNS Server v.13.5 allows a remote attacker to cause a denial of service via the rate-limiting component | Jan 8, 2026 | 7.5 | 27 | NO | NO |
CVE-2026-45557MEDIUM Technitium DNS Server aggressively tries to fetch missing RRSIG records or mismatched DNSKEY records. An attacker in control of a domain can cause a vulnerable system to generate e | May 19, 2026 | 5.8 | 24 | NO | NO |
CVE-2024-56089HIGH 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. | Dec 1, 2025 | 7.5 | 24 | NO | NO |
CVE-2022-48256HIGH Technitium DNS Server before 10.0 allows a self-CNAME denial-of-service attack in which a CNAME loop causes an answer to contain hundreds of records. | Jan 13, 2023 | 7.5 | 24 | NO | NO |
CVE-2023-28451HIGH An issue was discovered in Technitium 11.0.2. There is a vulnerability (called BadDNS) in DNS resolving software, which triggers a resolver to ignore valid responses, thus causing | Sep 18, 2024 | 7.5 | 21 | NO | NO |
CVE-2023-49203HIGH Technitium 11.5.3 allows remote attackers to cause a denial of service (bandwidth amplification) because the DNSBomb manipulation causes accumulation of low-rate DNS queries such t | Sep 18, 2024 | 7.5 | 20 | NO | NO |
CVE-2023-28457HIGH An issue was discovered in Technitium through 11.0.3. It enables attackers to conduct a DNS cache poisoning attack and inject fake responses within 1 second, which is impactful. | Sep 18, 2024 | 7.5 | 20 | NO | NO |
Signals from CVEs in this vendor scope (14 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Technitium.
Media articles that mention a CVE ID that affects a product developed by Technitium — matched by CVE ID, not by vendor name.