CVE-2026-45557

MEDIUM

Technitium DNS Server excessive DNSSEC requests

Title source: cna
STIX 2.1

Description

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 excessive network traffic. Fixed in 15.0.

Scores

CVSS v3 5.8
EPSS 0.0039
EPSS Percentile 30.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-405 CWE-406 CWE-770
Status published
Products (2)
Technitium/DNS Server < 15.0
Technitium/DNS Server 15.0
Published May 19, 2026
Tracked Since May 19, 2026