CVE-2026-10723 | BIND may accept incorrect child-zone NSEC3 records as valid,… | CVSS 6.8 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.

Metadata

CVE ID: CVE-2026-10723
State: PUBLISHED
Assigner: isc
Reserved: 2026-06-03 07:56 UTC
Published: 2026-07-22 14:08 UTC
Last updated: 2026-07-22 14:08 UTC
Primary CWE: CWE-347
CWE-347 Improper Verification of Cryptographic Signature
Vendor / Product: ISC / BIND 9
Sources: cve.org · NVD

Severity & Metrics

6.8 MEDIUM CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
ISC	BIND 9	—	9.18.0 ≤ 9.18.50, 9.20.0 ≤ 9.20.24, 9.21.0 ≤ 9.21.23, 9.11.3-S1 ≤ 9.18.50-S1 …

Weakness (CWE)

CWE	Source	Description
CWE-347	cna	CWE-347 Improper Verification of Cryptographic Signature

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.8	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

References (3)