# CVE-2026-101053: Thinkware U3000 arbitrary file write in TCP service

Source: https://junglewise.ai/threats/cve-2026-101053-a-vulnerability-was-determined-in-thinkware-u3000-up-to-1-02-04  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-28. Updated: 2026-09-28  
License: CC BY 4.0 with a link back

CVE-2026-101053 · Severity: high · CVSS 7.3 · Published 2026-09-28

Thinkware U3000 is a network-connected dashcam that records and stores video. An unauthenticated attacker on the local network can write arbitrary files to any location on the device's filesystem, including system directories. This allows modification of WiFi credentials, shell scripts, and other critical files, leading to device compromise and potential credential theft.

Technologies: [Thinkware U3000](https://junglewise.ai/threats/technologies/u3000). Vendors: [Thinkware](https://junglewise.ai/threats/vendors/thinkware).

## Quick answers

**Is CVE-2026-101053 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101053 being exploited in the wild.

**How severe is CVE-2026-101053?** High severity, with a CVSS score of 7.3, published 28 September 2026.

**Which products and versions are affected?** Thinkware U3000 up to 1.02.04.

**Is there a fix for CVE-2026-101053?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-101053 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-101053?** Check whether you run Thinkware U3000 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The PUT_FILE command (msg_id 1286) in the TCP control protocol accepts an absolute file path and attacker-supplied content without authentication or path validation. The vulnerability exists on the unencrypted, unauthenticated control socket (port 7878). Any network-adjacent attacker can reach this socket and write to /tmp or other directories, including files holding WiFi credentials (wpa_supplicant.conf) and shell scripts.

## Affected products

- Thinkware U3000 up to 1.02.04

## Timeline

- 2026-06-21: disclosed
- 2026-09-28: advisory

## References

- [https://github.com/tuhttps://github.com/turretsec/disclosure-thinkware-u3000/blob/main/findings/02-arbitrary-file-read.mdrretsec/disclosure-thinkware-u3000/blob/main/findings/01-arbitrary-file-write.md](https://github.com/tuhttps://github.com/turretsec/disclosure-thinkware-u3000/blob/main/findings/02-arbitrary-file-read.mdrretsec/disclosure-thinkware-u3000/blob/main/findings/01-arbitrary-file-write.md)
- [https://github.com/turretsec/disclosure-thinkware-u3000/blob/main/findings/01-arbitrary-file-write.md](https://github.com/turretsec/disclosure-thinkware-u3000/blob/main/findings/01-arbitrary-file-write.md)

## Related threats

- [Thinkware U3000 information disclosure in TCP service](https://junglewise.ai/threats/cve-2026-101055-a-security-flaw-has-been-discovered-in-thinkware-u3000-up-to-1)
- [Thinkware U3000 arbitrary file read in TCP service](https://junglewise.ai/threats/cve-2026-101054-a-vulnerability-was-identified-in-thinkware-u3000-up-to-1-02-04)