PatchTheCVECVE-2026-7415: The MQTT broker embedded in Yarbo firmware v2.3.9 is configured to allow anonymous connections with no topic-l
CVE-2026-7415 is a critical-severity flaw (CVSS 9.8) affecting lawn mower firmware, lawn mower pro firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- Public exploit reference
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 55%) |
| CISA exploited list | No |
| Weakness | CWE-306 |
| Published | 2026-05-07 |
| Last modified | 2026-10-26 |
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-7415?
lawn mower firmware: mitigate or apply the listed mitigation; lawn mower pro firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2026-7415 being exploited?
CVE-2026-7415 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-7415 affect?
CVE-2026-7415 affects lawn mower firmware, lawn mower pro firmware. Severity is critical (CVSS 9.8). 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 dire
How urgent is CVE-2026-7415?
Priority 59/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action