---
id: CVE-2025-13878
title: >-
  Malformed BRID/HHIT records can cause `named` to terminate unexpectedly.

  This issue affects BIND 9 versions 9.18.40 through 9.18.43, 9.20.13 through
  9.20.17, 9.21.12 through 9.21.16, 9.18.40-S1 through 9.18.43-S1, and
  9.20.13-S1 through …
summary: >-
  Malformed BRID/HHIT records can cause `named` to terminate unexpectedly.

  This issue affects BIND 9 versions 9.18.40 through 9.18.43, 9.20.13 through
  9.20.17, 9.21.12 through 9.21.16, 9.18.40-S1 through 9.18.43-S1, and
  9.20.13-S1 through …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-617
  - CWE-1286
published: '2026-01-21'
updated: '2026-06-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-13878'
references:
  - url: 'https://downloads.isc.org/isc/bind9/9.18.44'
    label: security-officer@isc.org
  - url: 'https://downloads.isc.org/isc/bind9/9.20.18'
    label: security-officer@isc.org
  - url: 'https://downloads.isc.org/isc/bind9/9.21.17'
    label: security-officer@isc.org
  - url: 'https://kb.isc.org/docs/cve-2025-13878'
    label: security-officer@isc.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/01/21/3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://access.redhat.com/errata/RHSA-2026:6935'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://access.redhat.com/security/cve/CVE-2025-13878'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2431600'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-13878.json
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
tags:
  - nvd
epss: 0.09218
epssPercentile: 0.95173
ingestedAt: '2026-06-30T13:26:50.529Z'
---

## Overview

Malformed BRID/HHIT records can cause `named` to terminate unexpectedly.
This issue affects BIND 9 versions 9.18.40 through 9.18.43, 9.20.13 through 9.20.17, 9.21.12 through 9.21.16, 9.18.40-S1 through 9.18.43-S1, and 9.20.13-S1 through 9.20.17-S1.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.