{"id":"CVE-2020-0796","title":"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'.","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'.","severity":"critical","cvss":10,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-119","CWE-119"],"vendor":"microsoft","product":"windows_10_1903","affected":["windows_10_1903","windows_10_1909","windows_server_1903","windows_server_1909"],"published":"2020-03-12","updated":"2026-08-12","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-0796","references":[{"url":"http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html","label":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html","label":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html","label":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html","label":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html","label":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html","label":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796","label":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0796","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","exploit-available"],"epss":0.9981,"epssPercentile":0.99959,"kev":true,"kevDateAdded":"2022-02-10","kevDueDate":"2022-08-10","kevRansomware":true,"exploited":true,"exploitAvailable":true,"ingestedAt":"2026-08-12T05:52:07.541Z","exploits":{"exploitdb":true,"github":86,"githubRepos":["https://github.com/k8gege/PyLadon","https://github.com/0x25bit/CVE-2020-0796-PoC","https://github.com/technion/DisableSMBCompression"],"metasploit":["exploit/windows/local/cve_2020_0796_smbghost","exploit/windows/smb/cve_2020_0796_smbghost"],"nuclei":["network/cves/2020/CVE-2020-0796"],"checkedAt":"2026-09-21T15:23:43.737Z"},"slug":"CVE-2020-0796","body":"## Overview\n\nA 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'.\n\n## Affected\n\n- `windows_10_1903`\n- `windows_10_1909`\n- `windows_server_1903`\n- `windows_server_1909`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"hadal","depthScore":100,"depthScoreParts":{"impact":55,"likelihood":20,"exploitation":25,"ransomware":5},"changes":[]}