Technitium
Monthly
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.
Technitium DNS Server performs amplified outbound DNS traffic when processing domains with missing RRSIG records or mismatched DNSKEY records - an attacker who controls any domain can exploit this behavior to force the resolver into generating excessive network queries against third-party infrastructure. All versions prior to 15.0 are affected per the vendor CPE listing (cpe:2.3:a:technitium:dns_server:*:*:*:*:*:*:*:*). The CVSS Changed Scope (S:C) confirms that impact extends beyond the vulnerable server itself, affecting downstream network resources and other systems. No public exploit code has been identified at time of analysis, and this vulnerability is not currently listed in the CISA KEV catalog.
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]
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.
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.
An issue was discovered in Technitium DNS Server through 8.0.2 that allows variant V2 of unintended domain name resolution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in Technitium DNS Server through 8.0.2 that allows variant V1 of unintended domain name resolution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
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.
Technitium DNS Server performs amplified outbound DNS traffic when processing domains with missing RRSIG records or mismatched DNSKEY records - an attacker who controls any domain can exploit this behavior to force the resolver into generating excessive network queries against third-party infrastructure. All versions prior to 15.0 are affected per the vendor CPE listing (cpe:2.3:a:technitium:dns_server:*:*:*:*:*:*:*:*). The CVSS Changed Scope (S:C) confirms that impact extends beyond the vulnerable server itself, affecting downstream network resources and other systems. No public exploit code has been identified at time of analysis, and this vulnerability is not currently listed in the CISA KEV catalog.
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]
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.
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.
An issue was discovered in Technitium DNS Server through 8.0.2 that allows variant V2 of unintended domain name resolution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in Technitium DNS Server through 8.0.2 that allows variant V1 of unintended domain name resolution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.