PatchTheCVECVE-2026-7414: Yarbo firmware v2.3.9 contains hardcoded administrative credentials embedded in the firmware image
CVE-2026-7414 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.
Yarbo firmware v2.3.9 contains hardcoded administrative credentials embedded in the firmware image. These credentials are identical across all devices running this firmware and cannot be changed or removed by end users, enabling trivial unauthorized access to device management interfaces by anyone who knows them.
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-798 |
| 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.
- Write-up: github.com/Bin4ry/yarbo-nat-in-my-back-yard
- Write-up: github.com/Bin4ry/yarbo-nat-in-my-back-yard#3--hardcoded-developer-credentials-in-producti
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-2026-7414?
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-2026-7414 being exploited?
CVE-2026-7414 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-2026-7414 affect?
CVE-2026-7414 affects lawn mower firmware, lawn mower pro firmware. Severity is critical (CVSS 9.8). Yarbo firmware v2.3.9 contains hardcoded administrative credentials embedded in the firmware image. These credentials are identical across all devices running this firmware and cannot be changed or removed by end users, enabling trivial una
How urgent is CVE-2026-7414?
Priority 58/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2026-7413 HIGH 7.2 MITIGATE MITIGATE A hidden, persistent backdoor was found in Yarbo firmware v2.3.9 that provides remote, unauthenticated (or wea
- CVE-2026-7415 CRITICAL 9.8 MITIGATE MITIGATE The MQTT broker embedded in Yarbo firmware v2.3.9 is configured to allow anonymous connections with no topic-l