{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-63275 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-63275 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-2026-63275 and fix it if it is affected.\n\nWhat it is: CVE-2026-63275 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-2026-63275 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-2026-63275/ (Markdown: https://insights.sbomify.com/CVE-2026-63275/index.md)","id":"CVE-2026-63275","markdown":"https://insights.sbomify.com/CVE-2026-63275/index.md","name":"CVE-2026-63275","record":{"aliases":["DEBIAN-CVE-2026-63275","ECHO-0c4c-8c22-be6a","GHSA-fh9h-5g6m-wc43","MINI-r5f9-v9fw-f59q","UBUNTU-CVE-2026-63275"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Office suite","requires_auth":"none","summary":"A stack buffer overflow in LibreOffice's CFF font hint handling allows attackers to execute arbitrary code or cause a crash via malicious documents.","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 can read CFF fonts, which may be embedded in documents. A stack buffer overflow existed when reading the hints of a glyph. The number of hints was checked against the wrong bound, so a glyph declaring more hints than the array can hold wrote past its end. In fixed versions the hint count is checked against the capacity the array really has.","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":"Stack buffer overflow in CFF font hint handling","id":"CVE-2026-63275","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":"Stack buffer overflow in CFF to Type 1 font conversion","id":"CVE-2026-63276"},"packages":[],"prev":{"headline":"Heap buffer overflow in PDF import stream handling","id":"CVE-2026-63274"},"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":"2026-09-22","vendors":["The Document Foundation"]},"summary":"A stack buffer overflow in LibreOffice's CFF font hint handling allows attackers to execute arbitrary code or cause a crash via malicious documents.","url":"https://insights.sbomify.com/CVE-2026-63275/"}