If a BIND resolver sends a query for a DNSSEC-signed authoritative zone, and the authoritative server replies with a valid wildcard answer and signed NSEC3 proof, followed by an unsigned NSEC at the same owner name, it will trigger an unexpected program exit. 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.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade bind | Sep 28, 2026 | Sep 16, 2026 |
| Amazon_linux_2023 | — | Upgrade bind-libs-debuginfoUpgrade bind-develUpgrade bind-dnssec-utilsUpgrade bind-debuginfoUpgrade bind-debugsourceUpgrade bindUpgrade bind-licenseUpgrade bind-utilsUpgrade bind-chrootUpgrade bind-utils-debuginfoUpgrade bind-dnssec-utils-debuginfoUpgrade bind-libsUpgrade bind-doc | Sep 30, 2026 | Sep 16, 2026 |
| Debian | — | Upgrade bind9 | Sep 21, 2026 | Sep 16, 2026 |
| Freebsd | — | Upgrade bind920 | Oct 5, 2026 | Oct 4, 2026 |
| Redhat_linux | — | No solution exists | Sep 18, 2026 | Sep 16, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 30, 2026 | Sep 16, 2026 |
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