# CVE-2025-13878

## Summary

- **CVE ID:** CVE-2025-13878
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-617
- **Published:** Jan 21, 2026
- **Last Modified:** Sep 1, 2026

## 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 9 (9.18.40)
- ISC — BIND 9 (9.20.13)
- ISC — BIND 9 (9.21.12)
- ISC — BIND 9 (9.18.40-S1)
- ISC — BIND 9 (9.20.13-S1)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 8.54%
- **EPSS Percentile:** 94.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._