CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.8. Public exploit code or proof-of-concept references have been detected in its references.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Detected Signals
arbitrary code execution code execution
Note: these links are listed for security research and verification purposes only.
CVE
CVE-2021-33626
Severity
HIGH
CVSS
7.8
EPSS
0.31%
Original NVD Description
A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt data in SMRAM memory and even lead to arbitrary code execution.
Related CVEs
Other vulnerabilities affecting the same vendor(s)