Description
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.
References (3)
Core 3
Core References
Various Sources
https://github.com/Bin4ry/yarbo-nat-in-my-back-yard#3--hardcoded-developer-credentials-in-production-apk
Third Party Advisory third-party-advisory
https://github.com/Bin4ry/yarbo-nat-in-my-back-yard
Scores
CVSS v3
9.8
EPSS
0.0053
EPSS Percentile
40.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
total
Details
CWE
CWE-798
Status
published
Products (3)
Yarbo/Firmware
< 2.3.9
yarbo/lawn_mower_firmware
2.3.9
yarbo/lawn_mower_pro_firmware
2.3.9
Published
May 07, 2026
Tracked Since
May 07, 2026