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CVE-2026-33594

7.5 high SSVC exploitation: none Analyzed
NVD · CVE.org

A client can trigger excessive memory allocation by generating a lot of queries that are routed to an overloaded DoH backend, causing queries to accumulate into a buffer that will not be released until the end of the connection.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.5 · powerdnsNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:*

References 1