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Medium severity6.5NVD Advisory· Published Apr 7, 2021· Updated Jun 17, 2026

CVE-2021-28166

CVE-2021-28166

Description

In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Eclipse/Mosquitto3 versions
    cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*range: >=2.0.0,<=2.0.9
    • (no CPE)range: 2.0.0 - 2.0.9
    • (no CPE)range: 2.0

Patches

Vulnerability mechanics

References

1

News mentions

0

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