CVE-2023-0809
5.3
MEDIUM
CVSS 3.1
EPSS 0.05%
Description
In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets.
How to fix CVE-2023-0809
To remediate CVE-2023-0809, upgrade the affected package to a fixed version below.
- Alpine/mosquitto—upgrade to 2.0.16-r0 or later
- Debian/mosquitto—upgrade to 2.0.11-1+deb11u1 or later
Is CVE-2023-0809 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 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |