{"id":"CVE-2020-0796","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-0796","generatedAt":"2026-10-31T17:25:48.112Z","title":"Microsoft SMBv3 Remote Code Execution Vulnerability","description":"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'.","published":"2020-03-12T16:15:16.000Z","lastModified":"2026-10-01T20:17:18.000Z","status":"Analyzed","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":10,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["microsoft/windows 10 1903","microsoft/windows 10 1909","microsoft/windows server 1903","microsoft/windows server 1909"],"epss":{"score":0.9981,"percentile":0.99958,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2022-02-10","dueDate":"2022-08-10","knownRansomwareCampaignUse":"Known","notes":"Apply updates per vendor instructions.\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-0796"},"exploits":{"count":3,"verified":false,"firstPublished":"2020-03-14","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":48537,"kind":"exploit","title":"Microsoft Windows - 'SMBGhost' Remote Code Execution","url":"https://www.exploit-db.com/exploits/48537","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/48537.py","file":"exploits/windows/remote/48537.py","published":"2020-06-02","added":"2020-06-02","updated":"2020-06-02","author":"chompie1337","type":"remote","platform":"windows","port":null,"verified":false,"codes":["CVE-2020-0796"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/chompie1337/SMBGhost_RCE_PoC/tree/92c9f46e46334c3bc3645ace3014622efd11704a"},{"edbId":48267,"kind":"exploit","title":"Microsoft Windows 10 (1903/1909) - 'SMBGhost' SMB3.1.1 'SMB2_COMPRESSION_CAPABILITIES' Local Privilege Escalation","url":"https://www.exploit-db.com/exploits/48267","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/local/48267.txt","file":"exploits/windows/local/48267.txt","published":"2020-03-30","added":"2020-03-30","updated":"2020-03-30","author":"Daniel García Gutiérrez","type":"local","platform":"windows","port":null,"verified":false,"codes":["CVE-2020-0796"],"tags":null,"aliases":"SMBGhost","applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/danigargu/CVE-2020-0796/tree/02df8af47f8d47fd17edb03b69da8bf6272cc544"},{"edbId":48216,"kind":"exploit","title":"Microsoft Windows 10 (1903/1909) - 'SMBGhost' SMB3.1.1 'SMB2_COMPRESSION_CAPABILITIES' Buffer Overflow (PoC)","url":"https://www.exploit-db.com/exploits/48216","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/48216.md","file":"exploits/windows/dos/48216.md","published":"2020-03-14","added":"2020-03-14","updated":"2020-03-14","author":"eerykitty","type":"dos","platform":"windows","port":null,"verified":false,"codes":["CVE-2020-0796"],"tags":null,"aliases":"SMBGhost","applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/eerykitty/CVE-2020-0796-PoC/tree/5378663af950bbb24ef79d4a9050b0e008396caa"}]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 10 August 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/156731/CoronaBlue-SMBGhost-Microsoft-Windows-10-SMB-3.1.1-Proof-Of-Concept.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/156732/Microsoft-Windows-SMB-3.1.1-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/156980/Microsoft-Windows-10-SMB-3.1.1-Local-Privilege-Escalation.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/157110/SMBv3-Compression-Buffer-Overflow.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/157901/Microsoft-Windows-SMBGhost-Remote-Code-Execution.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/158054/SMBleed-SMBGhost-Pre-Authentication-Remote-Code-Execution-Proof-Of-Concept.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0796","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0796","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-0796","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}