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CVE-2021-35393
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2021-08-16T12:15:07.230 · Last modified 2026-06-17T03:57:29.073

Summary

Realtek Jungle SDK version v2.x up to v3.4.14B provides a 'WiFi Simple Config' server that implements both UPnP and SSDP protocols. The binary is usually named wscd or mini_upnpd and is the successor to miniigd. The server is vulnerable to a stack buffer overflow vulnerability that is present due to unsafe parsing of the UPnP SUBSCRIBE/UNSUBSCRIBE Callback header. Successful exploitation of this vulnerability allows remote unauthenticated attackers to gain arbitrary code execution on the affected device.

Affected products

realtek — rtl819x_jungle_software_development_kit

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.