CVE-2026-96888

A BIND resolver that is configured with both a "redirect" zone and "qname-minimization strict" may abort with an assertion failure while processing the redirect. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.16.8-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://downloads.isc.org/isc/bind9/9.20.30
https://downloads.isc.org/isc/bind9/9.21.27
https://kb.isc.org/docs/cve-2026-96888

Configurations

No configuration.

History

26 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Un resolvedor BIND configurado con una zona ’redirect’ y con ’qname-minimization strict’ puede abortar con una falla de aserción al procesar la redirección. \nEste problema afecta a BIND?9 versiones desde 9.16.0 hasta 9.18.50 incluidas, desde 9.20.0 hasta 9.20.29 incluidas, desde 9.21.0 hasta 9.21.26 incluidas, desde 9.16.8?S1 hasta 9.18.50?S1 incluidas, y desde 9.20.9?S1 hasta 9.20.29?S1 incluidas.

21 Oct 2026, 13:21

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-21 13:21

Updated : 2026-10-26 21:10

NVD link : CVE-2026-96888

Mitre link : CVE-2026-96888

CVE.ORG link : CVE-2026-96888

JSON object : View

Products Affected

No product.

CWE

CWE-476

NULL Pointer Dereference

CWE-617

Reachable Assertion

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