Actively exploited in the wild
Microsoft SMBv3 Remote Code Execution Vulnerability
Microsoft - SMBv3 · Listed in the CISA KEV since 2022-02-10. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2020-0796
CriticalCVSS 10.0KEVExploitation Probability (EPSS)
Very high risk100th percentile - higher than 100% of all known CVEs
Summary
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.
Risk Assessment
An attacker can exploit this vulnerability to execute code remotely on vulnerable Windows systems, potentially leading to system takeover and malware propagation.
Recommendation
Apply security updates from Microsoft for Windows systems supporting SMBv3.
Original NVD description (English source)
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.