{"id":"CVE-2026-63266","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-63266","generatedAt":"2026-10-28T03:27:31.083Z","title":"LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document.","description":"LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. Through such a link a document could open an embedded Firebird database that wrote a file to any location the user could write to. In fixed versions an embedded Firebird database can open or create files only inside its own private directory.","published":"2026-10-05T12:17:11.000Z","lastModified":"2026-10-06T15:03:59.000Z","status":"Deferred","sourceIdentifier":"security@documentfoundation.org","cvss":{"version":"4.0","score":6.8,"severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-22"],"affected":[],"epss":{"score":0.00156,"percentile":0.04666,"date":"2026-10-26","history":[{"date":"2026-10-06","score":0.00156,"percentile":0.04106}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-05T12:17:11.000Z","detail":{"score":"6.8","severity":"MEDIUM","publishedAt":"2026-10-05T12:17:10.577Z"},"summary":"New CVE, medium severity (CVSS 6.8)."}],"references":[{"url":"https://www.libreoffice.org/about-us/security/advisories/cve-2026-63266","source":"security@documentfoundation.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63266","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."}