How severe is CVE-2021-35393?

This vulnerability has a severity rating of CRITICAL with a CVSS score of 9.8 out of 10.

What type of vulnerability is CVE-2021-35393?

This is classified as CWE-787, which is a common weakness in software security.

CVE-2021-35393 - CRITICAL Severity | CVSS 9.8

Vulnerability 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 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.

Related Vulnerabilities

CVE-2007-0158

CRITICAL

CVSS:9.8(Critical)

thttpd 2007 has buffer underflow.

CWE-7872007

CVE-2007-0899

CRITICAL

CVSS:9.8(Critical)

There is a possible heap overflow in libclamav/fsg.c before 0.100.0.

CWE-7872007

CVE-2010-4344

CRITICAL

CVSS:9.8(Critical)

Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conju...

CWE-7872010

CVE-2011-1180

CRITICAL

CVSS:9.8(Critical)

Multiple stack-based buffer overflows in the iriap_getvaluebyclass_indication function in net/irda/iriap.c in the Linux kernel before 2.6.39 allow remote attackers to cause a denial of service (memory...

CWE-7872011

CVE-2011-2462

CRITICAL

CVSS:9.8(Critical)

Unspecified vulnerability in the U3D component in Adobe Reader and Acrobat 10.1.1 and earlier on Windows and Mac OS X, and Adobe Reader 9.x through 9.4.6 on UNIX, allows remote attackers to execute ar...

CWE-7872011

CVE-2011-4372

CRITICAL

CVSS:9.8(Critical)

Adobe Reader and Acrobat before 9.5, and 10.x before 10.1.2, on Windows and Mac OS X allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors,...

CWE-7872011