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RobotRisk / Roborock / 2021-09-15

Roborock discloses insecure random-number generator flaw in Tuya IoT cloud connection

S1 · 09/15
2021 · Roborock

Record

CompanyRoborock
Categoryconsumer robotics
Typecyber
Date09/15
2021
Time of daynot documented
Locationno physical site (recall / fleet-wide / aggregate record)
SeverityS1 (near-miss / disclosed vulnerability)
Scale5 models
Confidencehigh
VerificationCited source on file; not independently re-verified
SourceRoborock (vendor disclosure)

What happened

Roborock disclosed that certain models (S6, S5 Max, S6 Pure, S6 MaxV, S4) connecting through Tuya's IoT cloud used a weak random number generator when negotiating the communication channel, potentially exposing device info, maps, and cleaning records; fixed via firmware update, no known exploitation reported.

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