CVE-2025-10543
Eclipse Paho Go MQTT may incorrectly encode strings if length exceeds 65535 bytes in github.com/eclipse/paho.mqtt.golang
EPSS 0.04%
Description
Eclipse Paho Go MQTT may incorrectly encode strings if length exceeds 65535 bytes in github.com/eclipse/paho.mqtt.golang
How to fix CVE-2025-10543
To remediate CVE-2025-10543, upgrade the affected package to a fixed version below.
- Go/github.com/eclipse/paho.mqtt.golang—upgrade to 1.5.1 or later
- Go/github.com/eclipse/paho.mqtt.golang—upgrade to 1.5.1 or later
Is CVE-2025-10543 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.5.1
- from 0, < 1.5.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |