CVE-2026-33595 — A client can trigger excessive memory allocation by
CVE-2026-33595 — A client can trigger excessive memory allocation by generating a lot of errors responses over a single DoQ and DoH3 connection, as some resources were not properly released until the end of the connection.
What This Means For You
- If your environment is affected by this vulnerability type, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-33595 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
Excessive DoQ/DoH3 Error Responses Indicating CVE-2026-33595 Memory Exhaustion Attempt
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-33595 | vulnerability | CVE-2026-33595 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 22, 2026 at 17:16 UTC |
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