CVE-2024-50692

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-01-24 · updated 2026-06-17
Weakness: CWE-798

Description

SunGrow WiNet-SV200.001.00.P027 and earlier versions contains hardcoded MQTT credentials that allow an attacker to send arbitrary commands to an arbitrary inverter. It is also possible to impersonate the broker, because TLS is not used to identify the real MQTT broker. This means that MQTT communications are vulnerable to MitM attacks at the TCP/IP level.

Affected products

Sungrowpower Winet-S Firmware: before 200.001.00.p027; 200.001.00.p027 — fixed in 200.001.00.p027

How to fix

Upgrade to a fixed version: Sungrowpower Winet-S Firmware 200.001.00.p027. Check the vendor advisory for mitigations.

References

https://en.sungrowpower.com/security-notice-detail-2/5961
https://mqtt-pwn.readthedocs.io/en/latest/intro.html

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