PT-2026-63412 · Isc · Bind 9

CVE-2026-10723 · Published 2026-07-22 · Updated 2026-07-22

NVD

CVSS v3.1

6.8

Medium

Base vector

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

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.

Fix

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

CVE-2026-10723

Affected Products

Bind 9

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-10723 · Security Note
• https://downloads.isc.org/isc/bind9/9.21.24 · Patch
• https://downloads.isc.org/isc/bind9/9.20.26 · Patch
• https://kb.isc.org/docs/cve-2026-10723 · Vendor Advisory