Black Shard's team can check your exposure to CVE-2026-75491 and take the fix off your plate.
Cudy TR3000 before 2.5.42 contains an authentication bypass vulnerability in the Mosquitto plugin auth_plugin_jwt.so that accepts unsigned JWTs using alg none. Attackers holding any Cudy-trusted client certificate can authenticate as admincudydevice on port 8883 and publish batchcmd requests to execute commands as root.
Black Shard's team can check your exposure, take a fix off your plate or step in on a live incident.
Chance of exploitation in the next 30 days
0.25%
EPSS score from FIRST
Updated 14 Nov 2026, 12:23 UTC, 33 of 36 sources answering.
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