CVE-2023-3592

7.5 highEPSS 0.8%

High (7.5) in eclipse mosquitto. EPSS 0.8% chance of exploitation in the next 30 days.

In Mosquitto before 2.0.16, a memory leak occurs when clients send v5 CONNECT packets with a will message that contains invalid property types.

Severity

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
CWE: CWE-401
Published: 2023-10-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19