# CVE-2026-109108: Wavlink WL-WN530BE1-A OS command injection in uploadVpn

Source: https://junglewise.ai/threats/cve-2026-109108-a-security-vulnerability-has-been-detected-in-wavlink-wl  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-109108 · Severity: critical · CVSS 9.9 · Published 2026-10-13

Wavlink WL-WN530BE1-A is a wireless router used to provide network connectivity. A remote attacker can inject arbitrary OS commands through the VPN upload function without authentication, gaining complete control over the device and potentially the network it protects.

Technologies: [Wavlink WL-WN530BE1-A](https://junglewise.ai/threats/technologies/wl-wn530be1-a). Vendors: [Wavlink](https://junglewise.ai/threats/vendors/wavlink).

## Quick answers

**Is CVE-2026-109108 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109108 being exploited in the wild.

**How severe is CVE-2026-109108?** Critical severity, with a CVSS score of 9.9, published 13 October 2026.

**Which products and versions are affected?** Wavlink WL-WN530BE1-A 251117.

**Is there a fix for CVE-2026-109108?** 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-2026-109108 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-109108?** Check whether you run Wavlink WL-WN530BE1-A 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 /cgi-bin/uploadVpn.cgi script's popen function, where the "Type" argument is not properly sanitized. An attacker can craft a malicious request from the network to execute arbitrary system commands with device privileges. Exploitation requires no authentication and proof-of-concept code has been publicly disclosed.

## Affected products

- Wavlink WL-WN530BE1-A 251117

## Timeline

- 2026-10-13: disclosed
- 2026-10-13: advisory

## References

- [https://gist.github.com/Rauzk/0a61823f0033441142dc1c3f4a776e7c](https://gist.github.com/Rauzk/0a61823f0033441142dc1c3f4a776e7c)
- [https://vuldb.com/cve/CVE-2026-109108](https://vuldb.com/cve/CVE-2026-109108)

## Related threats

- [WAVLINK WL-WN530BE1-A command injection in protocol.csp](https://junglewise.ai/threats/cve-2026-120198-a-vulnerability-has-been-found-in-wavlink-wl-wn530be1-a-v251117)
- [Wavlink WL-WN530BE1-A OS command injection in protocol.csp](https://junglewise.ai/threats/cve-2026-113802-wavlink-wl-wn530be1-a-firmware-through-m30be1-v251117-contains)
- [Wavlink WL-WN530BE1-A stack-based buffer overflow in settings export](https://junglewise.ai/threats/cve-2026-109109-a-vulnerability-was-detected-in-wavlink-wl-wn530be1-a-251117)