{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-63273 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-63273 is a medium-severity memory corruption vulnerability in The Document Foundation LibreOffice, published on 22 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-63273 and fix it if it is affected.\n\nWhat it is: CVE-2026-63273 is a medium-severity memory corruption vulnerability in The Document Foundation LibreOffice, published on 22 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-63273 in the wild and no public exploit code.\n\nAffected product: The Document Foundation LibreOffice. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-63273/ (Markdown: https://insights.sbomify.com/CVE-2026-63273/index.md)","id":"CVE-2026-63273","markdown":"https://insights.sbomify.com/CVE-2026-63273/index.md","name":"CVE-2026-63273","record":{"aliases":["DEBIAN-CVE-2026-63273","ECHO-ef2e-7ba4-f184","GHSA-254q-47m3-r67w","MINI-p52p-v3q2-3vwj","UBUNTU-CVE-2026-63273"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"LibreOffice Draw","requires_auth":"none","summary":"A heap buffer overflow in LibreOffice Draw allows attackers to execute arbitrary code or cause a crash by providing a maliciously crafted encrypted PDF document.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Document Fdn.","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Heap buffer overflow in PDF import encryption handling","id":"CVE-2026-63273","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Heap buffer overflow in PDF import stream handling","id":"CVE-2026-63274"},"packages":[],"prev":{"headline":"Heap buffer overflow in WMF text record import","id":"CVE-2026-63272"},"products":["LibreOffice"],"published":"2026-09-22","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-28","vendors":["The Document Foundation"]},"summary":"A heap buffer overflow in LibreOffice Draw allows attackers to execute arbitrary code or cause a crash by providing a maliciously crafted encrypted PDF document.","url":"https://insights.sbomify.com/CVE-2026-63273/"}