Auth bypass in Yarbo Firmware
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 dir…
Vulnerability class: Broken Authentication
EPSS: 0.000 (10.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Yarbo Firmware — versions 0
- Yarbo Lawn_mower
- Yarbo Lawn_mower_firmware — versions 2.3.9
- Yarbo Lawn_mower_pro
- Yarbo Lawn_mower_pro_firmware — versions 2.3.9
Weakness classification (CWE)
References
- cve@takeonme.org (Exploit, Third Party Advisory, third-party-advisory)
- cve@takeonme.org (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-7415?
- CVE-2026-7415 is a critical-severity vulnerability in Yarbo Firmware, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-05-07.
- How severe is CVE-2026-7415?
- Critical severity. CVSS v3 base score is 9.8 out of 10.