GCVE-110-ISC-2026-19666

Advisory Published

Vulnetix · Advisory published September 16, 2026

CVE: CVE-2026-19666 Title: Use-after-free in query_addnoqnameproof() via the DNS64 filter64 path Document version: 2.0 Posting date: 16 September 2026 Program impacted: BIND 9 Versions affected: BIND 9.11.0 -> 9.18.50 9.20.0 -> 9.20.27 9.21.0 -> 9.21.25 BIND Supported Preview Edition 9.11.3-S1 -> 9.18.50-S1 9.20.9-S1 -> 9.20.27-S1 Severity: High Exploitable: Remotely Description: On a resolver configured to use dns64, if an applicable answer from the authoritative server is malformed in a sp ...

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Affected Products

Vendor	Product	Versions	Platforms
ISC	BIND	—	—

Aliases

CVE-2026-19666

References

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

advisory

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