{"id":"CVE-2026-33112","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-33112","generatedAt":"2026-10-31T04:55:40.127Z","title":"Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","description":"Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","published":"2026-05-12T18:17:04.000Z","lastModified":"2026-10-26T18:10:00.000Z","status":"Analyzed","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-502"],"affected":["microsoft/sharepoint server"],"epss":{"score":0.31124,"percentile":0.98265,"date":"2026-10-30","history":[{"date":"2026-09-24","score":0.02286,"percentile":0.82444},{"date":"2026-10-25","score":0.31124,"percentile":0.98255}]},"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 31.1%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-25T00:00:00.000Z","detail":{"to":0.31124,"from":0.02286,"percentile":0.98255},"summary":"EPSS moved from 2.3% to 31.1% probability of exploitation in the next thirty days."},{"kind":"epss","label":"EPSS jump","at":"2026-09-24T00:00:00.000Z","detail":{"to":0.02286,"from":0.32712,"percentile":0.82444},"summary":"EPSS moved from 32.7% to 2.3% probability of exploitation in the next thirty days."}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33112","tags":["Vendor Advisory"],"source":"secure@microsoft.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-33112","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."}