CVE Catalog

CVE-2026-33596

LowCVSS 3.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.17%

6th percentile - higher than 6% of all known CVEs

Summary

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 routed to a TCP-only or DNS over TLS backend.

Risk Assessment

Query-response mismatches may lead to incorrect name resolution results or potential response poisoning, affecting DNS communication integrity and confidentiality. The risk applies to environments using TCP-only or DoT backends.

Recommendation

Monitor and rate-limit queries to TCP-only and DNS over TLS backends and apply updates containing the fix. Consider query-flood protections on both client and server sides.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS