by Kastro
Paper/Archive/CVE-2026-7415

CVE-2026-7415

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

EPSS 0.5%public exploitCVSS 9.8
critical.is priorityof 100
49
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 45.7.457 × 209.1Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Firmware≤ 2.3.9–CNA

Scores by source

AHA (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/Bin4ry/yarbo-nat-in-my-back-yardwriteuptakeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000000111111111100111111111110000000000000000000000000000000000000000000000000000001001