CVEvulnerability
CVE-2026-19666
7.5 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-16
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-416
Description
On a resolver configured to use ``dns64``, if an applicable answer from the authoritative server is malformed in a specific way, the resolver `named` process will exit unexpectedly.
This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://downloads.isc.org/isc/bind9/9.20.29 downloads.isc.org
- https://downloads.isc.org/isc/bind9/9.21.26 downloads.isc.org
- https://kb.isc.org/docs/cve-2026-19666 kb.isc.org