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CVE-2023-3592

HIGH
7.5
CVSS Score
Published: October 2, 2023 at 07:01 PM UTC
Updated: June 17, 2026 at 06:14 AM UTC
1 product affected across 1 vendorMosquitto

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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mosquitto· Eclipse
95%
v < 2.0.16
Affected range stops below 2.0.16, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Release Notes
Source: [email protected]
https://mosquitto.org/blog/2023/08/version-2-0-16-released/
Source: [email protected]
https://security.gentoo.org/glsa/202401-09

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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