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...

CVE-2026-12246

NSD 4.14.0 contains a vulnerability where a specially crafted APL RR with adflength exceeding the address family limit can cause a stack overwrite when writing the zone to disk, allowing up to 111 attacker-controlled bytes to influence memory. This is a data/stack corruption issue that affects th...

NSD packet.c Off-By-One Remote Overflow

According to its self-reported version number, the version of NSD running on the remote host has a stack-based buffer overflow vulnerability. This could allow a remote attacker to overwrite one byte in memory, leading to a denial of service. It is possible, but unlikely, that this vulnerability...

NSD version Directive Remote Version Disclosure

The remote host is running Name Server Daemon NSD, an open source DNS server. It is possible to extract the version number of the remote installation by sending a special DNS request for the text 'version.bind' in the domain 'chaos'. C Tenable Network Security, Inc. include"compat.inc"; if...