CVE-2026-80274

The record

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.

Affected packages

Related vulnerabilities

• CVE-2026-76163 If BIND is loaded with a "`named.conf`" file that contains no global "`options`" block… CWE-617
• CVE-2026-31911 libpcap BPF interpreter calls abort() if it encounters a BPF instruction that has an… CWE-617
• CVE-2026-53532 OpenEXR is the reference implementation and specification for the EXR image format… CWE-617
• CVE-2026-63388 Libevent is an event notification library. CWE-617
• CVE-2026-62377 libheif is a HEIF and AVIF file format decoder and encoder. CWE-617
• CVE-2026-62289 libheif is a HEIF and AVIF file format decoder and encoder. CWE-617
• CVE-2026-71430 node-re2 provides RE2 regular expression bindings for Node.js. CWE-617
• CVE-2026-13204 If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent… CWE-617