FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

bind920 -- multiple vulnerabilities

Affected packages
bind920 < 9.20.29

Details

VuXML ID 45921d77-b346-11f1-952f-589cfc023192
Discovery 2026-09-16
Entry 2026-10-04

ISC team reports:

CVE-2026-19668: Resource Exhaustion via Excessive DNSSEC Cryptographic Material Matching

CVE-2026-19033: Unauthenticated IXFR deltas are applied to the live zone before TSIG verification

CVE-2026-77119: NSEC3 insecure-referral proof can use unrelated cached NSEC3 RRsets

CVE-2026-19941: checkwildcard() accepts an out-of-zone NSEC as a wildcard-nonexistence proof

CVE-2026-19666: Use-after-free in query_addnoqnameproof() via the DNS64 filter64 path

CVE-2026-19667: Remote assertion failure via 16-bit length truncation in dns_ncache_add()

CVE-2026-19662: qpcache NOQNAME proof use-after-free crashes recursive resolver

CVE-2026-75029: Message parser retains every identical singleton RDATA, enabling wire-to-work amplification

CVE-2026-77692: Unauthenticated remote crash of named via a single DoH SIG(0) request

CVE-2026-81736: Remote CPU denial of service through cached SVCB/HTTPS AliasMode trees

CVE-2026-76163: named aborts on a TKEY query when the user configuration has no global options statement

CVE-2026-78301: Out-of-zone database nodes can become authoritative zone cuts

CVE-2026-80274: Validating resolver can abort while caching a mismatched NOQNAME proof

CVE-2026-81563: SVCB AliasMode additional-data error leaks qpcache references

References

CVE Name CVE-2026-19033
CVE Name CVE-2026-19662
CVE Name CVE-2026-19666
CVE Name CVE-2026-19667
CVE Name CVE-2026-19668
CVE Name CVE-2026-19941
CVE Name CVE-2026-75029
CVE Name CVE-2026-76163
CVE Name CVE-2026-77119
CVE Name CVE-2026-77692
CVE Name CVE-2026-78301
CVE Name CVE-2026-80274
CVE Name CVE-2026-81563
CVE Name CVE-2026-81736
URL https://kb.isc.org/docs/cve-2026-19033
URL https://kb.isc.org/docs/cve-2026-19662
URL https://kb.isc.org/docs/cve-2026-19666
URL https://kb.isc.org/docs/cve-2026-19667
URL https://kb.isc.org/docs/cve-2026-19668
URL https://kb.isc.org/docs/cve-2026-19941
URL https://kb.isc.org/docs/cve-2026-75029
URL https://kb.isc.org/docs/cve-2026-76163
URL https://kb.isc.org/docs/cve-2026-77119
URL https://kb.isc.org/docs/cve-2026-77692
URL https://kb.isc.org/docs/cve-2026-78301
URL https://kb.isc.org/docs/cve-2026-80274
URL https://kb.isc.org/docs/cve-2026-81563
URL https://kb.isc.org/docs/cve-2026-81736