Missing Support for Integrity Check (CWE-353)
5.9
CVSS 3.1
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CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Lifecycle Timeline
2
Analysis Generated
Apr 22, 2026 - 13:10 vuln.today
Patch available
Apr 22, 2026 - 11:16 EUVD
DescriptionNVD
A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service.
AnalysisAI
PowerDNS Recursor versions 5.2.x, 5.3.x, and 5.4.0 are vulnerable to denial of service when processing a zone transition from NSEC to NSEC3 DNSSEC record types, causing internal inconsistency and resolver unavailability. The vulnerability requires network access but elevated attack complexity, affecting recursive DNS resolvers in production environments. …
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External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
Always review and test exploit code in a safe, isolated environment (VM/sandbox).
Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).
EUVD-2026-24727
GHSA-rq6v-8q98-rrj8