Description
A hidden, persistent backdoor was found in Yarbo firmware v2.3.9 that provides remote, unauthenticated (or weakly authenticated) access to privileged functionality. The backdoor is undocumented, cannot be disabled via user-facing settings, and survives factory reset and ordinary firmware updates.
Affected products
yarbo: lawn mower firmware; yarbo: lawn mower; yarbo: lawn mower pro firmware; yarbo: lawn mower pro
References3
- github.com/Bin4ry/yarbo-nat-in-my-back-yard ExploitThird Party Advisory
- takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000… Third Party Advisory
- takeonme.org/cves/cve-2026-7413/ Third Party Advisory
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 48 · as of 13 November 2026
- CWE
- CWE-912
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.