Persistent undocumented backdoor access in Yarbo robot
Priority HIGH 76CWE-912Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00577 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Yarbo | Firmware | up to 2.3.9 | — | No fix listed | CNA |
- Firmware VendorYarbo Affected up to 2.3.9 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:yarbo:lawn_mower_firmware:2.3.9:*:*:*:*:*:*:* | 2.3.9 | Vulnerable | Yarbo |
| cpe:2.3:h:yarbo:lawn_mower:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Yarbo |
| cpe:2.3:o:yarbo:lawn_mower_pro_firmware:2.3.9:*:*:*:*:*:*:* | 2.3.9 | Vulnerable | Yarbo |
| cpe:2.3:h:yarbo:lawn_mower_pro:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Yarbo |
- cpe:2.3:o:yarbo:lawn_mower_firmware:2.3.9:*:*:*:*:*:*:* Versions 2.3.9 Vulnerable ·Yarbo
- cpe:2.3:h:yarbo:lawn_mower:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Yarbo
- cpe:2.3:o:yarbo:lawn_mower_pro_firmware:2.3.9:*:*:*:*:*:*:* Versions 2.3.9 Vulnerable ·Yarbo
- cpe:2.3:h:yarbo:lawn_mower_pro:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Yarbo
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-7413
- 2026-10-03 Alias added: GHSA-pq5m-hxx2-xhw5
- 2026-10-25 EPSS moved to the below the 50th percentile
References
More Yarbo Lawn Mower Firmware vulnerabilities
- TI-2026-06518 Open MQTT orchestration without read/write ACLs in Yarbo robot firmware CVSS 3.1CRITICAL 9.8
- TI-2026-06517 Hardcoded credentials in Yarbo robot firmware CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-7413 · CVE Program
- CVE-2026-7413 · NVD
- FIRST EPSS
- GHSA-pq5m-hxx2-xhw5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences