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An inapplicable NSEC record may be accepted by a `named` resolver as proof that no wildcard exists, which could allow an attacker at the same or an upstream level of the zone name to mask the existence of a victim's wildcard record. 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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade bind | Sep 28, 2026 | Sep 16, 2026 |
| Amazon Linux Ami 2 | — | Upgrade bind-export-develUpgrade bind-export-libsUpgrade bind-develUpgrade bind-pkcs11-utilsUpgrade bind-libs-liteUpgrade bind-sdb-chrootUpgrade bind-lite-develUpgrade bind-debuginfoUpgrade bind-chrootUpgrade bind-utilsUpgrade bind-licenseUpgrade bind-pkcs11-develUpgrade bind-pkcs11Upgrade bind-sdbUpgrade bindUpgrade bind-pkcs11-libsUpgrade bind-libs | Oct 19, 2026 | Oct 19, 2026 |
| Amazon_linux_2023 | — | Upgrade bind-libs-debuginfoUpgrade bind-utilsUpgrade bind-licenseUpgrade bind-develUpgrade bind-libsUpgrade bind-debuginfoUpgrade bind-dnssec-utilsUpgrade bind-chrootUpgrade bind-debugsourceUpgrade bind-dnssec-utils-debuginfoUpgrade bind-utils-debuginfoUpgrade bind-docUpgrade bind | 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 |
| Ubuntu | — | Upgrade bind9 (Ubuntu Pro)Upgrade bind9 | Oct 15, 2026 | Oct 14, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2026 | Sep 16, 2026 |
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