Vulnerability Details CVE-2026-12245
NSD from version 4.13.0 has a heap use-after-free bug in logging errors on TLS connections, causing a crash of the server process, which can be triggered trivially by sending a DNS query over a DoT connection, and closing the connection without reading the response.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 19.4%
CVSS Severity
CVSS v3 Score 7.5