CVE-2026-78251: DJI Drone FTP Service Allows Unrestricted Storage Consumption of the /blackbox Directory

Published Aug 24, 2026
·
Updated

DJI drones contain an FTP service that uses hardcoded credentials shared across affected models and permits authenticated users to upload files without limits on file size, file count, or total storage consumed in /blackbox/upgrade/, as well as overwrite existing files in that directory. An attacker with access to the drone's internal network or USB RNDIS interface can exhaust the available storage, preventing the aircraft from writing flight records, logs, and telemetry and potentially preventing subsequent firmware updates. Uploaded files persist across reboot and factory reset.

Affected models are DJI Neo until 01.00.0400, DJI Neo 2 until 01.00.0500, DJI Flip until 01.00.1200, DJI Air 3 until 01.00.1600, DJI Air 3S until 01.00.1400, DJI Avata 2 until 01.00.0400, DJI Avata 360 until 01.00.0300, DJI Mavic 3 until 01.00.1400, DJI Mavic 3 Classic until 01.00.0800, DJI Mavic 3 Pro until 01.01.0700, DJI Mavic 4 Pro until 01.00.0500, DJI Mini 2 until 01.07.0200, DJI Mini 3 until 01.00.0500, DJI Mini 3 Pro until 01.00.0900, DJI Mini 4 Pro until 01.00.1100, and DJI Mini 5 Pro until 01.00.0600.

Remediation requires a firmware update from the vendor.

Affected Software

16 affected components
DJI DJI Neo<01.00.0400
DJI DJI Neo 2<01.00.0500
DJI DJI Flip<01.00.1200
DJI DJI Air 3<01.00.1600
DJI DJI Air 3S<01.00.1400
DJI DJI Avata 2<01.00.0400
DJI DJI Avata 360<01.00.0300
DJI DJI Mavic 3<01.00.1400
DJI DJI Mavic 3 Classic<01.00.0800
DJI DJI Mavic 3 Pro<01.01.0700
DJI DJI Mavic 4 Pro<01.00.0500
DJI DJI Mini 2<01.07.0200
DJI DJI Mini 3<01.00.0500
DJI DJI Mini 3 Pro<01.00.0900
DJI DJI Mini 4 Pro<01.00.1100
DJI DJI Mini 5 Pro<01.00.0600

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade DJI Neo to a version that resolves this vulnerability.

    Fixed in 01.00.0400
  2. Upgrade

    Upgrade DJI Neo 2 to a version that resolves this vulnerability.

    Fixed in 01.00.0500
  3. Upgrade

    Upgrade DJI Flip to a version that resolves this vulnerability.

    Fixed in 01.00.1200
  4. Upgrade

    Upgrade DJI Air 3 to a version that resolves this vulnerability.

    Fixed in 01.00.1600
  5. Upgrade

    Upgrade DJI Air 3S to a version that resolves this vulnerability.

    Fixed in 01.00.1400
  6. Upgrade

    Upgrade DJI Avata 2 to a version that resolves this vulnerability.

    Fixed in 01.00.0400
  7. Upgrade

    Upgrade DJI Avata 360 to a version that resolves this vulnerability.

    Fixed in 01.00.0300
  8. Upgrade

    Upgrade DJI Mavic 3 to a version that resolves this vulnerability.

    Fixed in 01.00.1400
  9. Upgrade

    Upgrade DJI Mavic 3 Classic to a version that resolves this vulnerability.

    Fixed in 01.00.0800
  10. Upgrade

    Upgrade DJI Mavic 3 Pro to a version that resolves this vulnerability.

    Fixed in 01.01.0700
  11. Upgrade

    Upgrade DJI Mavic 4 Pro to a version that resolves this vulnerability.

    Fixed in 01.00.0500
  12. Upgrade

    Upgrade DJI Mini 2 to a version that resolves this vulnerability.

    Fixed in 01.07.0200
  13. Upgrade

    Upgrade DJI Mini 3 to a version that resolves this vulnerability.

    Fixed in 01.00.0500
  14. Upgrade

    Upgrade DJI Mini 3 Pro to a version that resolves this vulnerability.

    Fixed in 01.00.0900
  15. Upgrade

    Upgrade DJI Mini 4 Pro to a version that resolves this vulnerability.

    Fixed in 01.00.1100
  16. Upgrade

    Upgrade DJI Mini 5 Pro to a version that resolves this vulnerability.

    Fixed in 01.00.0600
  17. Operational

    Assume attacker-uploaded files to the DJI Drone FTP Service persist across reboot and factory reset; verify and remove any unexpected files uploaded to /blackbox/upgrade/ after remediation (follow vendor-appropriate procedures).

Event History

Aug 24, 2026
CVE Published
via MITRE·07:04 AM
Data Sourced
via MITRE·07:04 AM
DescriptionWeakness

Frequently Asked Questions

1

What access does an attacker need to exploit this issue?

The attacker needs access to the drone's internal network or its USB RNDIS interface. They can then authenticate to the FTP service using credentials shared across affected models.

2

What is the practical impact of storage exhaustion?

Exhausting storage can prevent the aircraft from writing flight records, logs, and telemetry. It can also potentially prevent later firmware updates, and existing files in the affected directory can be overwritten.

3

Will a reboot or factory reset remove malicious uploaded files?

No. Files uploaded to the affected directory persist across both reboot and factory reset.

4

Which firmware versions need remediation?

Firmware updates are required for DJI Neo before 01.00.0400, Neo 2 before 01.00.0500, Flip before 01.00.1200, Air 3 before 01.00.1600, Air 3S before 01.00.1400, Avata 2 before 01.00.0400, Avata 360 before 01.00.0300, Mavic 3 before 01.00.1400, Mavic 3 Classic before 01.00.0800, Mavic 3 Pro before 01.01.0700, Mavic 4 Pro before 01.00.0500, Mini 2 before 01.07.0200, Mini 3 before 01.00.0500, Mini 3 Pro before 01.00.0900, Mini 4 Pro before 01.00.1100, and Mini 5 Pro before 01.00.0600. The stated remediation is a vendor firmware update.

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