CVE-2023-28366
7.5
HIGH
CVSS 3.1
EPSS 0.12%
Description
The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with duplicate message IDs, and fails to respond to PUBREC commands. This occurs because of mishandling of EAGAIN from the libc send function.
How to fix CVE-2023-28366
To remediate CVE-2023-28366, upgrade the affected package to a fixed version below.
- Alpine/mosquitto—upgrade to 2.0.16-r0 or later
- —upgrade to 2.0.11-1+deb11u1 or later
Is CVE-2023-28366 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.0.16-r0
- from 0, < 2.0.11-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |