Vulnerability in Isc Bind 9
CVE-2025-13878
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.092 (95.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.084 · newest: 0.092 · change: +0.009
Affected products
- Isc Bind 9 — versions 9.18.40, 9.20.13, 9.21.12
Weakness classification (CWE)
References
- kb.isc.org/docs/cve-2025-13878 (vendor-advisory)
- downloads.isc.org/isc/bind9/9.18.44 (patch)
- downloads.isc.org/isc/bind9/9.20.18 (patch)
- downloads.isc.org/isc/bind9/9.21.17 (patch)
- af854a3a-2127-422b-91ae-364da2661108
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2025-13878?
- CVE-2025-13878 is a high-severity vulnerability in Isc Bind 9, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2026-01-21.
- How severe is CVE-2025-13878?
- High severity. CVSS v3 base score is 7.5 out of 10.