CVE-2021-35392

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References
Link Resource
https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain Exploit Third Party Advisory Broken Link
https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en Patch Vendor Advisory Broken Link
https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf Patch Vendor Advisory
https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain Exploit Third Party Advisory Broken Link
https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en Patch Vendor Advisory Broken Link
https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf Patch Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:realtek:rtl819x_jungle_software_development_kit:*:*:*:*:*:*:*:*
History

13 Aug 2025, 15:22

Type Values Removed Values Added
CPE cpe:2.3:a:realtek:jungle_sdk:*:*:*:*:*:*:*:* cpe:2.3:a:realtek:rtl819x_jungle_software_development_kit:*:*:*:*:*:*:*:*
First Time Realtek rtl819x Jungle Software Development Kit
References () https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain - Exploit, Third Party Advisory () https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain - Exploit, Third Party Advisory, Broken Link
References () https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en - Patch, Vendor Advisory () https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en - Patch, Vendor Advisory, Broken Link

21 Nov 2024, 06:12

Type Values Removed Values Added
References () https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain - Exploit, Third Party Advisory () https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain - Exploit, Third Party Advisory
References () https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en - Patch, Vendor Advisory () https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en - Patch, Vendor Advisory
References () https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf - Patch, Vendor Advisory () https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf - Patch, Vendor Advisory
Information

Published : 2021-08-16 12:15

Updated : 2025-08-13 15:22

NVD link : CVE-2021-35392

Mitre link : CVE-2021-35392

CVE.ORG link : CVE-2021-35392

JSON object : View

Products Affected

realtek

  • rtl819x_jungle_software_development_kit
CWE
CWE-787

Out-of-bounds Write