# CVE-2026-10138: TOTOLINK X2000R OS command injection in boa formUpload()

Source: https://junglewise.ai/threats/cve-2026-10138-a-os-command-injection-vulnerability-exists-in-the-boa-formupload  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-10138 · Severity: critical · CVSS 9.1 · Published 2026-10-20

The TOTOLINK X2000R is a budget home router used for network connectivity and Wi-Fi distribution. An authenticated attacker can inject arbitrary OS commands through the web interface's file upload functionality, gaining complete control of the router to intercept traffic, modify settings, or launch further network attacks.

Technologies: [TOTOLINK X2000r](https://junglewise.ai/threats/technologies/x2000r). Vendors: [TOTOLINK](https://junglewise.ai/threats/vendors/totolink).

## Quick answers

**Is CVE-2026-10138 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-10138 being exploited in the wild.

**How severe is CVE-2026-10138?** Critical severity, with a CVSS score of 9.1, published 20 October 2026.

**Which products and versions are affected?** TOTOLINK X2000r TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327.

**Is there a fix for CVE-2026-10138?** 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-2026-10138 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-10138?** Check whether you run TOTOLINK X2000r 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

An OS command injection vulnerability exists in the formUpload() function of the boa web server binary on X2000R routers. An authenticated attacker can craft a malicious HTTP POST request with specially crafted upload parameters that are not properly sanitized before being passed to an OS command, resulting in arbitrary code execution with router privileges. The vulnerability requires prior authentication and network access to the administrative web interface.

## Affected products

- TOTOLINK X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327

## Timeline

- 2026-10-20: disclosed

## References

- [https://talosintelligence.com/vulnerability_reports/TALOS-2026-2438](https://talosintelligence.com/vulnerability_reports/TALOS-2026-2438)

## Related threats

- [TOTOLINK X2000R stack-based buffer overflow in formTR069Config](https://junglewise.ai/threats/cve-2026-9869-a-stack-based-buffer-overflow-vulnerability-exists-in-the-boa)
- [Totolink X2000R arbitrary file write in boa formUploadFile](https://junglewise.ai/threats/cve-2026-9827-a-arbitrary-file-write-vulnerability-exists-in-the-boa)
- [Totolink X2000R stack-based buffer overflow in boa formUploadFile](https://junglewise.ai/threats/cve-2026-9817-a-stack-based-buffer-overflow-vulnerability-exists-in-the-boa)
- [Totolink X2000R OS command injection in formWizard](https://junglewise.ai/threats/cve-2026-9814-an-os-command-injection-vulnerability-exists-in-the-boa-formwizard)
- [TOTOLINK X2000R stack-based buffer overflow in boa formFilter](https://junglewise.ai/threats/cve-2026-9660-multiple-exploitable-stack-based-buffer-overflow-vulnerabilities)