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.
History

Wed, 13 Aug 2025 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Realtek rtl819x Jungle Software Development Kit
CPEs cpe:2.3:a:realtek:realtek_jungle_sdk:*:*:*:*:*:*:*:* cpe:2.3:a:realtek:rtl819x_jungle_software_development_kit:*:*:*:*:*:*:*:*
Vendors & Products Realtek realtek Jungle Sdk
Realtek rtl819x Jungle Software Development Kit

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-08-16T11:07:46

Updated: 2024-08-04T00:33:51.312Z

Reserved: 2021-06-23T00:00:00

Link: CVE-2021-35393

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-08-16T12:15:07.230

Modified: 2025-08-13T15:22:43.290

Link: CVE-2021-35393

cve-icon Redhat

No data.