What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 9.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-21 · updated 2026-09-01
• Weakness: CWE-617

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 products

• ISC BIND: from 9.18.40 through 9.18.43; from 9.20.13 through 9.20.17; from 9.21.12 through 9.21.16; from 9.18.40-S1 through 9.18.43-S1; from 9.20.13-S1 through 9.20.17-S1

References

• https://downloads.isc.org/isc/bind9/9.18.44
• https://downloads.isc.org/isc/bind9/9.20.18
• https://downloads.isc.org/isc/bind9/9.21.17
• https://kb.isc.org/docs/cve-2025-13878
• http://www.openwall.com/lists/oss-security/2026/01/21/3
• https://access.redhat.com/errata/RHSA-2026:6935
• https://access.redhat.com/security/cve/CVE-2025-13878
• https://bugzilla.redhat.com/show_bug.cgi?id=2431600
• https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-13878.json

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