{"id":"CVE-2020-0796","published":"2020-03-12T16:15:15Z","modified":"2026-10-01T20:17:17Z","title":"Microsoft SMBv3 Remote Code Execution Vulnerability","vendor":"Microsoft","product":"SMBv3","tier":"core","eol":null,"description":{"text":"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'.","provenance":"source","from":"NVD"},"summary":{"text":"A remote code execution flaw in Microsoft's SMBv3 protocol (Server Message Block 3.1.1) lies in how it handles certain requests, involving improper restriction of operations within the bounds of a memory buffer. An attacker who can reach the affected SMBv3 client or server over the network, without needing credentials or any user interaction, can execute code on the target.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T06:54:14Z"},"cvss":{"score":10.0,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.9981,"percentile":0.99958,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2022-02-10","dueDate":"2022-08-10","ransomware":true,"requiredAction":"Apply updates per vendor 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