{"schemaVersion":3,"id":"CVE-2026-63277","aliases":["UBUNTU-CVE-2026-63277","DEBIAN-CVE-2026-63277"],"status":"published","duplicateOf":null,"title":null,"description":"LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. A document could name a Java database driver for such a link to be loaded from a remote location, so opening the document could run Java code from that location. In fixed versions an entry in a Java class path has to be a file URL.","dates":{"published":"2026-10-05T11:17:20.739Z","modified":"2026-10-05T12:43:43.032Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.5,"severity":"high","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":8.5,"severity":"high","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Ubuntu","score":8.5,"severity":"high","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Debian","score":8.5,"severity":"high","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":8.5,"severity":"high","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00151,"percentile":0.03901,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-06T00:00:00.000Z","score":0.00145,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00145,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00145,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00145,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00145,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00151,"percentile":0.03901}],"last30":[{"date":"2026-10-06T00:00:00.000Z","score":0.00145,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00145,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00145,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00145,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00145,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00151,"percentile":0.03901}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-829","name":"Inclusion of Functionality from Untrusted Control Sphere","description":"The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/829.html"}],"affected":[{"vendor":"debian","product":"libreoffice","name":"libreoffice","label":"libreoffice","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/libreoffice","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 4:25.2.3-2+deb13u8","noFixRecorded":false,"fixedIn":null},{"text":"< 4:26.2.5.2-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 4:25.2.3-2+deb13u8 | < 4:26.2.5.2-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"libreoffice","name":"libreoffice","label":"libreoffice","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/libreoffice","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"the document foundation","product":"libreoffice","name":"LibreOffice","label":"libreoffice","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 26.2, < < 26.2.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 26.2, < < 26.2.5","eol":null,"hubHref":"/vendor/the_document_foundation/libreoffice"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.libreoffice.org/about-us/security/advisories/cve-2026-63277","label":"www.libreoffice.org/about-us/security/advisories/cve-2026-63277","hostname":"www.libreoffice.org","tags":[]},{"url":"https://ubuntu.com/security/CVE-2026-63277","label":"ubuntu.com/security/CVE-2026-63277","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63277","label":"www.cve.org/CVERecord?id=CVE-2026-63277","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63277","label":"www.libreoffice.org/security/","hostname":"www.libreoffice.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-63277","label":"security-tracker.debian.org/tracker/CVE-2026-63277","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["MGASA-2026-0514","RHSA-2026:82013"],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-05T11:17:20.739Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-05T12:43:43.032Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":34,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T09:45:34.491Z","stale":false,"partial":false}}