CVE-2026-12245

EUVD-2026-39183
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 17%
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Debian Releases
Debian Product
Codename
nsd
bookworm
4.6.1-1
fixed
bullseye
4.3.5-1
fixed
forky
vulnerable
sid
4.14.3-1
fixed
trixie
4.12.0-1
fixed