PT-2021-3801 · Realtek · Realtek Jungle Sdk
Published
2021-08-15
·
Updated
2025-08-13
·
CVE-2021-35393
CVSS v3.1
10
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Realtek Jungle SDK versions v2.x through v3.4.14B
Description
The WiFi Simple Config server in the Realtek Jungle SDK is vulnerable due to unsafe parsing of the UPnP SUBSCRIBE/UNSUBSCRIBE Callback header, leading to a stack buffer overflow. This allows remote unauthenticated attackers to gain arbitrary code execution on the affected device.
Recommendations
For Realtek Jungle SDK versions v2.x through v3.4.14B, consider disabling the
wscd or mini upnpd binary until a patch is available to prevent exploitation of the stack buffer overflow vulnerability. Restrict access to the WiFi Simple Config server to minimize the risk of exploitation. Avoid using the UPnP SUBSCRIBE/UNSUBSCRIBE Callback header in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Stack Overflow
Memory Corruption
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Related Identifiers
Affected Products
Realtek Jungle Sdk