Critical 9.8Published May 7, 2026

CVE-2026-7415Open MQTT orchestration without read/write ACLs in Yarbo robot firmware

Updated under an hour ago (Oct 27, 2026, 8:10 PM ET)

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It affects Yarbo Firmware and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Yarbo Firmware

Exploited in the last 30 days

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.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-306
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: AHA
NVD analysis: Analyzed
Record last updated: May 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Yarbo Firmware yarbo:firmware (from the name)	through 2.3.9	CNA record
yarbo lawn_mower_firmware yarbo:lawn_mower_firmware	2.3.9	NVD
yarbo lawn_mower_pro_firmware yarbo:lawn_mower_pro_firmware	2.3.9	NVD

References

References

https://github.com/Bin4ry/yarbo-nat-in-my-back-yard	third-party-advisory, exploit
https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000000111111111100111111111110000000000000000000000000000000000000000000000000000001001	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.