CVE-2026-12246

NSD version 4.14.0 introduced a bug where a specially crafted APL RR, with an adflength larger than permitted for the address family will overwrite the stack when the zone is written to disk, with a maximum of 111 attacker controlled bytes...

SUSE CVE-2016-6173

NSD before 4.1.11 allows remote DNS master servers to cause a denial of service /tmp disk consumption and slave server crash via a zone transfer with unlimited data...

UBUNTU-CVE-2020-28935

NLnet Labs Unbound, up to and including version 1.12.0, and NLnet Labs NSD, up to and including version 4.3.3, contain a local vulnerability that would allow for a local symlink attack. When writing the PID file, Unbound and NSD create the file if it is not there, or open an existing file for...

Denial Of Service (DoS)

nsd is vulnerable to denial of service. An attacker is able to overwrite the PID file via a local symlink attack which will cause the application to crash...