CVE-2021-35392
CVSS v3
7.5
HIGH
EPSS Score
83.2 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2021-08-16
Frequently asked questions
What is 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.
Is CVE-2021-35392 actively exploited?
Active exploitation of CVE-2021-35392 has not been confirmed. Its EPSS score was 83.2% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-35392?
CVE-2021-35392 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-35392 affecting your environment?
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