EUVD-2026-24935
Integer Overflow or Wraparound (CWE-190)
2026-04-22
[email protected]
3.1
CVSS 3.1
CVSS VectorNVD
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Lifecycle Timeline
2
Patch available
Apr 22, 2026 - 16:33 EUVD
Analysis Generated
Apr 22, 2026 - 15:02 vuln.today
DescriptionNVD
A client might theoretically be able to cause a mismatch between queries sent to a backend and the received responses by sending a flood of perfectly timed queries that are routed to a TCP-only or DNS over TLS backend.
AnalysisAI
dnsdist can experience a denial-of-service condition through query-response mismatching when a client sends precisely timed floods of queries routed to TCP-only or DNS over TLS backends. An adjacent network attacker with high timing precision can cause limited availability impact by desynchronizing the query-response correlation on affected backends, though exploitation requires favorable network conditions and careful query timing. …
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