Critical (9.8) in sungrowpower winet-s firmware. EPSS 0.6% chance of exploitation in the next 30 days.
SunGrow WiNet-SV200.001.00.P027 and earlier versions is vulnerable to stack-based buffer overflow when parsing MQTT messages, due to missing MQTT topic bounds checks.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-31)