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Vulnerability · Published Jan 21, 2026 · Assigned by isc

CVE-2025-13878Malformed BRID/HHIT records can cause named to terminate unexpectedly

High 7.5

In plain English

A high-severity security flaw in BIND 9 from ISC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 9.4% (higher than 95% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)9.4%top 4.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20bind9.18.44-r0ALPINE-CVE-2025-13878
Alpine:v3.21bind9.18.44-r0ALPINE-CVE-2025-13878
Alpine:v3.22bind9.20.18-r0ALPINE-CVE-2025-13878
Alpine:v3.23bind9.20.18-r0ALPINE-CVE-2025-13878
Alpine:v3.24bind9.20.18-r0ALPINE-CVE-2025-13878
Debian:12bind91:9.18.44-1~deb12u1DSA-6107-1
Debian:12bind91:9.18.44-1~deb12u1DEBIAN-CVE-2025-13878
Debian:13bind91:9.20.18-1~deb13u1DEBIAN-CVE-2025-13878
Debian:13bind91:9.20.18-1~deb13u1DSA-6107-1
Debian:14bind91:9.20.18-1DEBIAN-CVE-2025-13878

Affected products (as reported)

VendorProductVersions
ISC BIND 9 9.18.40 – through 9.18.439.20.13 – through 9.20.179.21.12 – through 9.21.169.18.40-S1 – through 9.18.43-S19.20.13-S1 – through 9.20.17-S1

Weakness: CWE-617, CWE-1286 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References