# CVE-2026-19962: Edimax EW-7478APC command injection in setWAN

Source: https://junglewise.ai/threats/cve-2026-19962-edimax-ew-7478apc-command-injection-in-setwan  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-17. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-19962 · Severity: high · CVSS 7.4 · Published 2026-08-17

The Edimax EW-7478APC is a wireless access point used to extend network coverage in homes and offices. A flaw in the device's web configuration interface allows remote attackers to inject arbitrary commands by manipulating username parameters (pppUserName, pptpUserName, or L2TPUserName) in the setWAN function. An attacker could gain complete control of the device, redirect network traffic, or use it as a foothold to compromise connected networks.

Technologies: [Edimax EW-7478APC](https://junglewise.ai/threats/technologies/ew-7478apc). Vendors: [Edimax](https://junglewise.ai/threats/vendors/edimax).

## Quick answers

**Is CVE-2026-19962 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-19962 being exploited in the wild.

**How severe is CVE-2026-19962?** High severity, with a CVSS score of 7.4, published 17 August 2026.

**Which products and versions are affected?** Edimax EW-7478APC 1.04.

**Is there a fix for CVE-2026-19962?** 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-2026-19962 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-19962?** Check whether you run Edimax EW-7478APC 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 vulnerability is a command injection flaw in the setWAN function of the /goform/setWAN endpoint on the Edimax EW-7478APC firmware version 1.04. The function fails to properly sanitize username input parameters (pppUserName, pptpUserName, L2TPUserName), allowing an attacker to embed shell commands that are executed with device privileges. The attack is unauthenticated and remotely exploitable over the network. A successful exploit grants an attacker arbitrary code execution on the device. The vendor was notified but has not released a patch.

## Affected products

- Edimax EW-7478APC 1.04

## Timeline

- 2026-08-17: disclosed

## References

- [https://lavender-bicycle-a5a.notion.site/EDIMAX-EW-7478APC-setWAN-34b53a41781f808aaf2bc972cc6d38d3?source=copy_link](https://lavender-bicycle-a5a.notion.site/EDIMAX-EW-7478APC-setWAN-34b53a41781f808aaf2bc972cc6d38d3?source=copy_link)
- [https://vuldb.com/cve/CVE-2026-19962](https://vuldb.com/cve/CVE-2026-19962)

## Related threats

- [Edimax EW-7478APC command injection in stainfo](https://junglewise.ai/threats/cve-2026-19963-edimax-ew-7478apc-command-injection-in-stainfo)
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- [Edimax EW-7478APC command injection in formWlbasic](https://junglewise.ai/threats/cve-2026-19960-edimax-ew-7478apc-command-injection-in-formwlbasic)
- [Edimax EW-7478APC stack buffer overflow in WAN configuration](https://junglewise.ai/threats/cve-2026-19959-edimax-ew-7478apc-stack-buffer-overflow-in-wan-configuration)
- [Edimax EW-7478APC buffer overflow in formUSBFolder](https://junglewise.ai/threats/cve-2026-13583-edimax-ew-7478apc-buffer-overflow-in-formusbfolder)