CVE-2011-0661

CVE-2011-0661 is a critical vulnerability affecting the SMB Server service across various Microsoft Windows operating systems, including XP, Vista, Server 2003, Server 2008, and Windows 7. This flaw stems from improper validation of fields in SMB requests, allowing remote attackers to execute arbitrary code via a malformed SMBv1 or SMBv2 packet. With a CVSS score of 10.0, it represents a severe risk (FAUCET Risk Score 98/100) due to its network-based attack vector, low attack complexity, and complete compromise potential (confidentiality, integrity, availability). Despite its high severity and EPSS score, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.