CVE-2026-7415

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.

CVSS v3.1 Score

9.8

CRITICAL

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

EPSS — Exploit Prediction

0.0003

Probability of exploitation

0.10%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-306 Missing Authentication

Affected Products

Vendor	Product	Versions
yarbo	lawn_mower_firmware	All
yarbo	lawn_mower	All
yarbo	lawn_mower_pro_firmware	All
yarbo	lawn_mower_pro	All

References

Exploits

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

Other References

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

Frequently Asked Questions

What is CVE-2026-7415? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-7415? +

CVE-2026-7415 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0003, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-7415? +

CVE-2026-7415 affects products from yarbo, specifically: lawn_mower, lawn_mower_firmware, lawn_mower_pro, lawn_mower_pro_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-7415? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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