{"id":"CVE-2026-63272","aliases":["DEBIAN-CVE-2026-63272","EUVD-2026-84352","GHSA-c374-v965-jr6c","MGASA-2026-0514","UBUNTU-CVE-2026-63272","USN-8868-1"],"status":"published","title":"Heap buffer overflow in WMF text record import","description":"LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to agree, so drawing the text walked the advance array by character position and ran past its end when the array was the shorter of the two. In fixed versions an advance array shorter than its text is ignored.","severity":{"version":"4.0","score":5.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00204,"percentile":0.10462,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125","CWE-787"],"published":"2026-09-22T11:10:03Z","modified":"2026-10-17T03:30:03Z","fixes":[{"ecosystem":"Debian:13","package":"libreoffice","fixed_in":["4:25.2.3-2+deb13u7"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libreoffice","fixed_in":["4:26.2.5.2-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:22.04:LTS","package":"libreoffice","fixed_in":["1:7.3.7-0ubuntu0.22.04.13"],"sources":["osv"]},{"ecosystem":"Ubuntu:24.04:LTS","package":"libreoffice","fixed_in":["4:24.2.7-0ubuntu0.24.04.7"],"sources":["osv"]},{"ecosystem":"Ubuntu:26.04:LTS","package":"libreoffice","fixed_in":["4:26.2.6.3-0ubuntu0.26.04.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libreoffice","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4:24.2.0-1","4:24.2.0-1~bpo12+1","4:24.2.0-2","4:24.2.0-3","4:24.2.0~alpha1-1","4:24.2.0~beta1-1","4:24.2.0~rc1-1","4:24.2.0~rc1-2","4:24.2.0~rc2-1","4:24.2.0~rc2-2","4:24.2.0~rc2-2~bpo12+1","4:24.2.1-1","4:24.2.1-2","4:24.2.1-3","4:24.2.1-4","4:24.2.1~rc1-1","4:24.2.1~rc2-1","4:24.2.2-1","4:24.2.2-2","4:24.2.2-3","4:24.2.2~rc1-1","4:24.2.2~rc1-2","4:24.2.2~rc2-1","4:24.2.2~rc2-2","4:24.2.3-1","4:24.2.3-1~bpo12+1","4:24.2.3-2","4:24.2.3~rc1-1","4:24.2.3~rc1-2","4:24.2.3~rc1-3","4:24.2.3~rc2-1","4:24.2.4-1","4:24.2.4-1~bpo12+1","4:24.2.5-1","4:24.2.5-1~bpo12+1","4:24.2.5-2","4:24.2.5-3","4:24.2.5-4","4:24.2.6-1","4:24.2.6-2","4:24.2.6-2~bpo12+1","4:24.8.0~alpha1-1","4:24.8.0~alpha1-2","4:24.8.0~alpha1-3","4:24.8.0~alpha1-4","4:24.8.0~beta1-1","4:24.8.0~rc1-1","4:24.8.0~rc2-1","4:24.8.0~rc3-1","4:24.8.0~rc3-2","4:24.8.1-1","4:24.8.1-2","4:24.8.1~rc1-1","4:24.8.2-1","4:24.8.2-1~bpo12+1","4:24.8.2-2","4:24.8.2~rc1-1","4:24.8.3-1","4:24.8.3-1~bpo12+1","4:24.8.3-2","4:24.8.3-3","4:24.8.4-1","4:24.8.4-1~bpo12+1","4:24.8.4-2","4:24.8.4-3","4:24.8.4-4","4:24.8.5-1","4:24.8.5-2","4:24.8.5-2~bpo12+1","4:24.8.5-2~bpo12+2","4:25.2.0~alpha1-1","4:25.2.0~beta1-1","4:25.2.0~beta1-2","4:25.2.0~rc1-1","4:25.2.0~rc1-2","4:25.2.0~rc1-3","4:25.2.0~rc1-4","4:25.2.0~rc2-1","4:25.2.0~rc3-1","4:25.2.0~rc3-2","4:25.2.1-1","4:25.2.1-2","4:25.2.1-3","4:25.2.1-3~bpo12+1","4:25.2.1~rc1-1","4:25.2.1~rc1-2","4:25.2.1~rc2-1","4:25.2.2-1","4:25.2.2-1~bpo12+1","4:25.2.2-2","4:25.2.2-3","4:25.2.2-3~bpo12+1","4:25.2.2~rc1-1","4:25.2.2~rc2-1","4:25.2.3-1","4:25.2.3-2","4:25.2.3-2~bpo12+1","4:25.2.3~rc1-1","4:25.2.3~rc1-2","4:25.2.3~rc2-1","4:25.8.0-1","4:25.8.0-1~bpo13+1","4:25.8.0~alpha1-1","4:25.8.0~alpha1-2","4:25.8.0~beta1-1","4:25.8.0~rc1-1","4:25.8.0~rc1-2","4:25.8.0~rc2-1","4:25.8.0~rc2-2","4:25.8.0~rc3-1","4:25.8.0~rc4-1","4:25.8.0~rc4-2","4:25.8.1-1","4:25.8.1-1~bpo13+1","4:25.8.1~rc1-1","4:25.8.2-1","4:25.8.2-2","4:25.8.2-3","4:25.8.2-3~bpo13+1","4:25.8.2~rc1-1","4:25.8.2~rc2-1","4:25.8.3-1","4:25.8.3-1+ports","4:25.8.3-1~bpo13+1","4:25.8.3~rc1-1","4:25.8.3~rc2-1","4:25.8.4-1","4:25.8.4-1~bpo13+1","4:26.2.0-1","4:26.2.0-1~bpo13+1","4:26.2.0~alpha1-1","4:26.2.0~alpha1-2","4:26.2.0~alpha1-3","4:26.2.0~beta1-1","4:26.2.0~rc1-1","4:26.2.0~rc2-1","4:26.2.0~rc3-1","4:26.2.1-1","4:26.2.1-1~bpo13+1","4:26.2.1~rc1-1","4:26.2.1~rc2-1","4:26.2.2.1-1","4:26.2.2.1-2","4:26.2.2.2-1","4:26.2.2.2-2","4:26.2.2.2-3","4:26.2.2.2-3~bpo13+1","4:26.2.3.1-1","4:26.2.3.2-1","4:26.2.3.2-2","4:26.2.3.2-2~bpo13+1","4:26.2.4.1-1","4:26.2.4.2-1","4:26.2.4.2-1~bpo13+1","4:26.2.4.2-2","4:26.2.5.2-1","4:26.2.5.2-2","4:26.2.5.2-2~bpo13+1","4:26.8.0.0.alpha1-1","4:26.8.0.0.alpha1-2","4:26.8.0.0.alpha1-3","4:26.8.0.0.alpha1-4","4:26.8.0.0.beta1-1","4:26.8.0.1-1","4:26.8.0.2-1","4:26.8.0.3-1","4:26.8.0.3-2","4:26.8.0.3-2~bpo13+1","4:26.8.1.1-1","4:7.4.5-3","4:7.4.7-1","4:7.4.7-1+deb12u1","4:7.4.7-1+deb12u10","4:7.4.7-1+deb12u11","4:7.4.7-1+deb12u12","4:7.4.7-1+deb12u13","4:7.4.7-1+deb12u14","4:7.4.7-1+deb12u1~bpo11+1","4:7.4.7-1+deb12u2","4:7.4.7-1+deb12u2~bpo11+1","4:7.4.7-1+deb12u3","4:7.4.7-1+deb12u4","4:7.4.7-1+deb12u5","4:7.4.7-1+deb12u6","4:7.4.7-1+deb12u7","4:7.4.7-1+deb12u8","4:7.4.7-1+deb12u9","4:7.4.7-1~bpo11+1","4:7.5.0~rc2-7","4:7.5.0~rc3-1","4:7.5.1~rc1-1","4:7.5.1~rc2-1","4:7.5.2~rc1-1","4:7.5.2~rc2-1","4:7.5.3~rc1-1","4:7.5.3~rc2-1","4:7.5.4-1","4:7.5.4-2","4:7.5.4-3","4:7.5.4-4","4:7.5.4~rc1-1","4:7.5.4~rc1-2","4:7.5.4~rc1-3","4:7.5.4~rc1-4","4:7.5.4~rc2-1","4:7.5.5-1","4:7.5.5-2","4:7.5.5-3","4:7.5.5-3~bpo12+1","4:7.5.5-4","4:7.5.5-4~bpo12+1","4:7.5.5~rc1-1","4:7.5.5~rc1-2","4:7.5.5~rc1-3","4:7.5.5~rc1-4","4:7.5.5~rc1-5","4:7.5.5~rc2-1","4:7.5.6-1","4:7.5.6-1~bpo12+1","4:7.5.7-1","4:7.5.8-1","4:7.5.8-1~bpo12+1","4:7.5.8~rc1-1","4:7.5.8~rc1-2","4:7.5.9~rc1-1","4:7.5.9~rc1-1~bpo12+1","4:7.5.9~rc1-1~bpo12+2","4:7.6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foundation","product":"libreoffice"}],"references":[{"url":"https://www.libreoffice.org/about-us/security/advisories/cve-2026-63272","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63272"},{"url":"https://github.com/advisories/GHSA-c374-v965-jr6c"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-63272","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2026-0514.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=36383","tags":["report"]},{"url":"https://lists.debian.org/debian-security-announce/2026/msg00424.html","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63272","tags":["web","report"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63273","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63274","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63275","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63276","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63277","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63278","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63279","tags":["web"]},{"url":"https://lists.debian.org/debian-security-announce/2026/msg00457.html","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63266","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63267","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63268","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63269","tags":["web"]},{"url":"https://www.libreoffice.org/security/#cve-2026-63270","tags":["web"]},{"url":"https://ubuntu.com/security/notices/USN-8868-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-63272","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63272","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-50593","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-63273","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-63274","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-63275","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-63276","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-63278","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-63279","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-63272","title":"Heap buffer overflow in WMF text record import","description":"LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to agree, so drawing the text walked the advance array by character position and ran past its end when the array was the shorter of the two. In fixed versions an advance array shorter than its text is ignored.","status":"published","published":"2026-09-22T11:10:03.258Z","modified":"2026-09-22T12:28:29.813Z","cvss":[{"version":"4.0","score":5.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna"}],"cwes":["CWE-787","CWE-125"],"updated_at":"2026-11-02T14:19:55.914391Z"}],"euvd":[{"id":"EUVD-2026-84352","description":"LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to agree, so drawing the text walked the advance array by character position and ran past its end when the array was the shorter of the two. In fixed versions an advance array shorter than its text is ignored.","status":"published","published":"2026-09-22T11:10:03Z","modified":"2026-09-22T12:28:29Z","cvss":[{"version":"4.0","score":5.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P","level":"medium"}],"updated_at":"2026-11-02T17:28:03.363938Z"}],"ghsa":[{"id":"GHSA-c374-v965-jr6c","title":"LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow...","description":"LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to agree, so drawing the text walked the advance array by character position and ran past its end when the array was the shorter of the two. In fixed versions an advance array shorter than its text is ignored.","status":"published","published":"2026-09-22T12:30:25Z","modified":"2026-09-22T12:30:26Z","cvss":[{"version":"4.0","score":5.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/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","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:12:17.163357Z"}],"nvd":[{"id":"CVE-2026-63272","description":"LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to agree, so drawing the text walked the advance array by character position and ran past its end when the array was the shorter of the two. In fixed versions an advance array shorter than its text is ignored.","status":"published","published":"2026-09-22T12:17:11.853Z","modified":"2026-09-22T19:09:32.273Z","cvss":[{"version":"4.0","score":5.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/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","level":"medium","assessor":"secondary"}],"cwes":["CWE-125","CWE-787"],"updated_at":"2026-11-02T14:12:50.368368Z"}],"osv":[{"id":"DEBIAN-CVE-2026-63272","description":"LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to agree, so drawing the text walked the advance array by character position and ran past its end when the array was the shorter of the two. In fixed versions an advance array shorter than its text is ignored.","status":"published","published":"2026-09-22T12:17:11.853Z","modified":"2026-09-24T20:00:06.819665492Z","cvss":[{"version":"4.0","score":5.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/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","level":"medium"}],"updated_at":"2026-11-02T15:45:57.932517Z"},{"id":"UBUNTU-CVE-2026-63272","description":"LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to agree, so drawing the text walked the advance array by character position and ran past its end when the array was the shorter of the two. In fixed versions an advance array shorter than its text is ignored.","status":"published","published":"2026-09-22T12:17:00Z","modified":"2026-10-05T19:22:28.737905357Z","cvss":[{"version":"4.0","score":5.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P","level":"medium"}],"updated_at":"2026-11-02T16:56:43.630667Z"},{"id":"MGASA-2026-0514","title":"Updated libreoffice package fixes security vulnerabilities","description":"Arbitrary file write via calcext:data-mappings, sql provider and\nFirebird backup functionality. (CVE-2026-63266)\nLFI and GET SSRF via calcext:data-mappings and csv provider.\n(CVE-2026-63267)\nLFI via calcext:data-mappings, sql provider and sdbc:flat:file:// db\nhref. (CVE-2026-63268)\nLFI and GET SSRF via GStreamer and HLS playlists. (CVE-2026-63269)\nEnvironment/ini-file leaks. (CVE-2026-63270)\nHeap buffer overflow in WMF text record import. (CVE-2026-63272)\nHeap buffer overflow in PDF import encryption handling. (CVE-2026-63273)\nHeap buffer overflow in PDF import stream handling. (CVE-2026-63274)\nStack buffer overflow in CFF font hint handling. (CVE-2026-63275)\nStack buffer overflow in CFF to Type 1 font conversion. (CVE-2026-63276)\nRCE via calcext:data-mappings, sql provider and jdbc connector.\n(CVE-2026-63277)\nPackage URLs can be used to exfiltrate arbitrary INI file values and\nenvironment variables. (CVE-2026-63278)\nOut of bounds read in PICT image import. (CVE-2026-63279)\n","status":"published","published":"2026-10-17T03:21:49Z","modified":"2026-10-17T03:30:03.784898295Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"USN-8868-1","title":"libreoffice vulnerabilities","description":"It was discovered that LibreOffice incorrectly handled WMF image\nimports. An attacker could possibly use this issue to cause LibreOffice\nto crash, resulting in a denial of service, or execute arbitrary code.\n(CVE-2026-63272)\n\nIt was discovered that LibreOffice incorrectly handled PDF document\nimports. An attacker could possibly use this issue to cause LibreOffice\nto crash, resulting in a denial of service, or execute arbitrary code.\n(CVE-2026-63273, CVE-2026-63274)\n\nIt was discovered that LibreOffice incorrectly handled CFF fonts\nembedded in documents. An attacker could possibly use this issue to\ncause LibreOffice to crash, resulting in a denial of service, or\nexecute arbitrary code. (CVE-2026-63275, CVE-2026-63276)\n\nIt was discovered that LibreOffice incorrectly validated package URLs.\nAn attacker could possibly use this issue to obtain sensitive\ninformation. (CVE-2026-63278)\n\nIt was discovered that LibreOffice incorrectly handled PICT image\nimports. An attacker could possibly use this issue to cause LibreOffice\nto crash, resulting in a denial of service, or obtain sensitive\ninformation. (CVE-2026-63279)\n\nIt was discovered that LibreOffice incorrectly mitigated out-of-bounds\nwrites via Graphite font actions. An attacker could possibly use this\nissue to cause LibreOffice to crash, resulting in a denial of service,\nor execute arbitrary code. (CVE-2026-50593)","status":"published","published":"2026-10-05T13:14:21Z","modified":"2026-10-05T19:28:05.411753521Z","updated_at":"2026-11-02T16:58:26.907654Z"}]}}