PT-2021-3800 · Realtek · Realtek Jungle Sdk
Published
2021-08-15
·
Updated
2025-08-13
·
CVE-2021-35392
CVSS v2.0
10
High
| Vector | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Realtek Jungle SDK versions v2.x up to v3.4.14B
Description
The issue is caused by a heap buffer overflow in the WiFi Simple Config server, which implements both UPnP and SSDP protocols. This overflow is due to the unsafe crafting of SSDP NOTIFY messages from received M-SEARCH messages ST header. An attacker, acting remotely, can exploit this issue by sending specially crafted messages, potentially allowing them to execute arbitrary code.
Recommendations
For Realtek Jungle SDK versions v2.x up to v3.4.14B, consider disabling the
wscd or mini upnpd binary until a patch is available to prevent exploitation of the heap buffer overflow vulnerability. Restrict access to the SSDP protocol to minimize the risk of receiving maliciously crafted SSDP NOTIFY messages. Avoid using the WiFi Simple Config server until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Heap Based Buffer Overflow
Buffer Overflow
Stack Overflow
Memory Corruption
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Related Identifiers
Affected Products
Realtek Jungle Sdk