CVE-2024-3935 MEDIUM

CVE-2024-3935: Eclipse Mosquito: Double free vulnerability

Vendor Eclipse Foundation
Product mosquitto
Weakness CWE-415
Published October 30, 2024
Last update November 3, 2025
View on NVD All CVEs

CVSS base score

6.0/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

In Eclipse Mosquito, versions from 2.0.0 through 2.0.18, if a Mosquitto broker is configured to create an outgoing bridge connection, and that bridge connection has an incoming topic configured that makes use of topic remapping, then if the remote connection sends a crafted PUBLISH packet to the broker a double free will occur with a subsequent crash of the broker.

Key dates

02Disclosure timeline

October 30, 2024 CVE published
November 3, 2025 Record updated