CVE-2026-78301

Published: Set 16, 2026 Last Modified: Set 17, 2026

ExploitDB:

Other exploit source:

Google Dorks:

MEDIUM 5,8

Source: [email protected]

Attack Vector: network

Attack Complexity: high

Privileges Required: high

User Interaction: none

Scope: changed

Confidentiality: none

Integrity: high

Availability: none

Description

AI Translation Available

A malformed zone may contain an NS or DNAME node above its origin, which `named` treats as a zone cut. If an attacker inserts a malformed zone into a BIND authoritative server (e.g., via zone transfer), queries for names inside the configured zone then lose authoritative status and return an out-of-zone delegation. On a server that also provides recursion BIND can follow this locally sourced cut and cache attacker-supplied data, affecting names outside the configured zone. This situation persists as long as the malformed zone remains in the zone database.
This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.