CVSS v3
9.8
CRITICAL
EPSS Score
12.2%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
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.
Active exploitation of CVE-2021-35393 has not been confirmed. The EPSS score is 12.2%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2021-35393 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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Ranked by exploit probability (EPSS).