{"id":"CVE-2020-1147","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-1147","generatedAt":"2026-10-31T16:14:30.585Z","title":"Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution Vulnerability","description":"A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check the source markup of XML file input, aka '.NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability'.","published":"2020-07-14T23:15:12.000Z","lastModified":"2026-06-17T03:00:35.000Z","status":"Analyzed","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":[],"affected":["microsoft/.net core","microsoft/.net framework","microsoft/sharepoint enterprise server","microsoft/sharepoint server","microsoft/visual studio 2017","microsoft/visual studio 2019"],"epss":{"score":0.95804,"percentile":0.99872,"date":"2026-10-30","history":[{"date":"2026-10-29","score":0.95804,"percentile":0.99872}]},"kev":{"listed":true,"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","notes":"Apply updates per vendor instructions.\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-1147"},"exploits":{"count":2,"verified":false,"firstPublished":"2020-08-17","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":50151,"kind":"exploit","title":"Microsoft SharePoint Server 2019 - Remote Code Execution (2)","url":"https://www.exploit-db.com/exploits/50151","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/aspx/webapps/50151.py","file":"exploits/aspx/webapps/50151.py","published":"2021-07-23","added":"2021-07-23","updated":"2021-07-23","author":"Podalirius","type":"webapps","platform":"aspx","port":null,"verified":false,"codes":["CVE-2020-1147"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null},{"edbId":48747,"kind":"exploit","title":"Microsoft SharePoint Server 2019 - Remote Code Execution","url":"https://www.exploit-db.com/exploits/48747","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/aspx/webapps/48747.py","file":"exploits/aspx/webapps/48747.py","published":"2020-08-17","added":"2020-08-17","updated":"2021-07-23","author":"West Shepherd","type":"webapps","platform":"aspx","port":null,"verified":false,"codes":["CVE-2020-1147"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"https://www.exploitalert.com/view-details.html?id=35992","tags":["Exploit","Third Party Advisory"],"source":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploitalert.com/view-details.html?id=35992","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1147","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-1147","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."}