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Medium severity5.4NVD Advisory· Published Sep 18, 2019· Updated Jun 17, 2026

CVE-2019-11778

CVE-2019-11778

Description

If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.

AI Insight

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

Affected products

4
  • Eclipse/Mosquitto3 versions
    cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*range: >=1.6,<1.6.5
    • (no CPE)range: 1.6.0 to 1.6.4
    • (no CPE)range: 1.6.0 to 1.6.4
  • Mosquitto/Mosquittollm-fuzzy
    Range: 1.6.0 to 1.6.4

Patches

Vulnerability mechanics

References

1

News mentions

0

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