CVE-2026-10723 MEDIUM

CVE-2026-10723: Incorrect acceptance of NSEC3 records

Vendor Isc
Product BIND 9
Weakness CWE-347
Published July 22, 2026
Last update July 22, 2026

CVSS base score

6.8/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

What the vulnerability does

01Description

BIND may accept incorrect child-zone NSEC3 records as valid, which could allow an attacker to forge authenticated NXDOMAIN responses. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.

Key dates

02Disclosure timeline

July 22, 2026 CVE published
July 22, 2026 Record updated

Related vulnerabilities

04Related CVE