{"id":"CVE-2021-31181","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-31181","generatedAt":"2026-11-05T01:28:37.772Z","title":"Microsoft SharePoint Remote Code Execution Vulnerability","description":"Microsoft SharePoint Remote Code Execution Vulnerability","published":"2021-05-11T19:15:10.000Z","lastModified":"2026-06-17T03:51:24.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-94"],"affected":["microsoft/sharepoint enterprise server","microsoft/sharepoint foundation","microsoft/sharepoint server"],"epss":{"score":0.29011,"percentile":0.98163,"date":"2026-11-03","history":[{"date":"2026-09-24","score":0.288,"percentile":0.98084}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 29.0%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/163208/Microsoft-SharePoint-Unsafe-Control-And-ViewState-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-2021-31181","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-573/","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://packetstormsecurity.com/files/163208/Microsoft-SharePoint-Unsafe-Control-And-ViewState-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-2021-31181","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-573/","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://packetstorm.news/files/id/163208","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-31181","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."}