GCVE-110-ISC-2026-19033

Advisory Published

Vulnetix · Advisory published September 16, 2026

CVE: CVE-2026-19033 Title: Unauthenticated IXFR deltas are applied to the live zone before TSIG verification 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: Medium Exploitable: Remotely Description: For a secondary zone with transfers restricted by TSIG, named may start to serve the data provided ...

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Affected Products

Vendor	Product	Versions	Platforms
ISC	BIND	—	—

Aliases

CVE-2026-19033

References

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

advisory

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