{"id":"CVE-2026-63273","revision":"c36eb52fc56f4983bd4ace6f39cb93f0","records":[{"revision":"c36eb52fc56f4983bd4ace6f39cb93f0","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-63273","aliases":[],"title":"Heap buffer overflow in PDF import encryption handling","description":"LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing an encrypted document. The length of the decryption key was taken from the document's own encryption dictionary and was used to fill a fixed size key buffer without being checked against it, so a length larger than that buffer wrote past its end. In fixed versions a declared key length larger than the buffer is rejected.","state":0,"publishedAt":"2026-09-22T11:10:13.896+00:00","modifiedAt":"2026-09-28T14:23:01.725+00:00","affected":[{"ecosystem":"Vendor product","name":"LibreOffice","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"The Document Foundation\",\n                    \"product\": \"LibreOffice\",\n                    \"defaultStatus\": \"unknown\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"26.2\",\n                            \"lessThan\": \"< 26.2.5\",\n                            \"versionType\": \"26.2 series\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","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","score":5.4,"severity":"MEDIUM"}],"references":["https://www.libreoffice.org/about-us/security/advisories/cve-2026-63273"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-63273","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-63273","identifiers":["CVE-2026-63273"]},"retained":false,"historicalAffected":[]}],"coverage":[]}