CVE-2021-35392

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 heap buffer overflow that is present due to unsafe crafting of SSDP NOTIFY messages from received M-SEARCH messages ST header.

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS

83.15% chance of exploitation in the next 30 days, 100th percentile

Published

2021-08-16

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain

References

• CVE Record
• NVD entry

Related

• CVE-2021-35380
• CVE-2021-35393
• CVE-2021-35346
• CVE-2021-35394
• CVE-2021-35344
• CVE-2021-35395