CVE-2026-7415

CRITICAL

Open MQTT orchestration without read/write ACLs in Yarbo robot firmware

Title source: cna

Description

The MQTT broker embedded in Yarbo firmware v2.3.9 is configured to allow anonymous connections with no topic-level read or write ACLs. Any host on the same network can subscribe to sensitive telemetry topics or publish control messages directly to the robot without authentication or authorization of any kind.

References (2)

Core 2

Core References

Third Party Advisory third-party-advisory

https://github.com/Bin4ry/yarbo-nat-in-my-back-yard

Third Party Advisory third-party-advisory

https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000000111111111100111111111110000000000000000000000000000000000000000000000000000001001

Scores

CVSS v3 9.8

EPSS 0.0054

EPSS Percentile 41.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-306

Status published

Products (3)

Yarbo/Firmware < 2.3.9

yarbo/lawn_mower_firmware 2.3.9

yarbo/lawn_mower_pro_firmware 2.3.9

Published May 07, 2026

Tracked Since May 07, 2026