# CVE-2026-52192: UTT nv518G command injection in gohead/sub_445C5C

Source: https://junglewise.ai/threats/cve-2026-52192-utt-nv518g-command-injection-in-gohead-sub-445c5c  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-02. Updated: 2026-07-02  
License: CC BY 4.0 with a link back

CVE-2026-52192 · Severity: info · CVSS 9.8 · Published 2026-07-02

A vulnerability exists in the UTT nv518G enterprise router that allows an attacker to take complete control of the device. By sending a specially crafted network request, a remote attacker can bypass security controls to execute system commands. This could lead to the theft of sensitive data, interception of network traffic, or a total shutdown of the router's services.

Technologies: [UTT NV518G](https://junglewise.ai/threats/technologies/nv518g). Vendors: [UTT](https://junglewise.ai/threats/vendors/utt).

## Quick answers

**Is CVE-2026-52192 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-52192 being exploited in the wild.

**How severe is CVE-2026-52192?** Informational severity, with a CVSS score of 9.8, published 2 July 2026.

**Which products and versions are affected?** UTT NV518G nv518GV3v3.2.7-210919-161313.

**Is there a fix for CVE-2026-52192?** 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-2026-52192 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-52192?** Check whether you run UTT NV518G 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

A command injection vulnerability exists in the UTT nv518G router (firmware version nv518GV3v3.2.7-210919-161313) within the gohead/sub_445C5C component. The root cause is the unsafe use of the sprintf function to construct a system command string using the 'serialNo' parameter without proper sanitization. Specifically, the code executes 'rm -f %s%s.xml' via doSystem(), where the second format string is populated by user-controlled input. An attacker can use shell metacharacters (e.g., ';', '|', or '$()') to break out of the intended command and execute arbitrary code with system privileges. While the initial advisory mentions Denial of Service, the technical analysis confirms full remote code execution (RCE).

## Affected products

- UTT nv518G nv518GV3v3.2.7-210919-161313

## Timeline

- 2026-07-02: disclosed: Initial disclosure via NVD and GitHub report

## References

- [https://github.com/akuma-QAQ/CVEreport/tree/main/518G/FUN_00445c5c](https://github.com/akuma-QAQ/CVEreport/tree/main/518G/FUN_00445c5c)
- [https://utt.com.cn/downloadcenter.php?filetypeid=3&model=518G&lang=zhcn](https://utt.com.cn/downloadcenter.php?filetypeid=3&model=518G&lang=zhcn)

## Related threats

- [UTT nv518G Buffer Overflow in gohead/sub_444C8C](https://junglewise.ai/threats/cve-2026-52191-utt-nv518g-buffer-overflow-in-gohead-sub-444c8c)
- [UTT nv518G buffer overflow in gohead/sub_487330](https://junglewise.ai/threats/cve-2026-52189-utt-nv518g-buffer-overflow-in-gohead-sub-487330)
- [UTT nv518G buffer overflow in gohead component](https://junglewise.ai/threats/cve-2026-52188-utt-nv518g-buffer-overflow-in-gohead-component)
- [UTT nv518G buffer overflow in GoAhead sub_483ba0](https://junglewise.ai/threats/cve-2026-52187-utt-nv518g-buffer-overflow-in-goahead-sub-483ba0)
- [UTT nv518G buffer overflow in gohead/sub_448384](https://junglewise.ai/threats/cve-2026-52190-utt-nv518g-buffer-overflow-in-gohead-sub-448384)