CVE-2026-12244

A flaw was found in nsd. When nsd is configured as a secondary server for a zone, a remote attacker, acting as the primary server for that zone, can send a specially crafted DNS message within an AXFR Asynchronous Full Zone Transfer request. This message, containing a malformed SVCB Service Bindi...

US-CERT Warns of Issues With DNS Zone Transfer Requests

The US-CERT is warning administrators and network operators that a misconfiguration issue with some DNS servers that has been known about for more than 15 years and can give attackers detailed information about DNS zones is coming back around thanks to new scans that show a high number of servers...

Nmap NSE net: dns-zone-transfer

Requests a zone transfer AXFR from a DNS server. The script sends an AXFR query to a DNS server. The domain to query is determined by examining the name given on the command line, the DNS server's hostname, or it can be specified with the dns-zone-transfer.domain' script argument. If the query is...