CVE-2026-10723

medium

Description

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.

References

https://kb.isc.org/docs/cve-2026-10723

https://downloads.isc.org/isc/bind9/9.21.24

https://downloads.isc.org/isc/bind9/9.20.26

Details

Source: Mitre, NVD

Published: 2026-07-22

Updated: 2026-07-22

Risk Information

CVSS v2

Base Score: 5.4

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 6.8

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

Severity: Medium