CVE-2026-63273

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{"bugzilla": {"description": "libreoffice: LibreOffice Draw: Denial of Service via malformed encrypted PDF import", "id": "2538675", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2538675"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-120", "details": ["A flaw was found in LibreOffice Draw. This vulnerability allows a remote attacker to cause a denial of service by crafting a specially designed encrypted PDF document. When a user opens this malicious document, a heap buffer overflow occurs because the software incorrectly handles the decryption key length, leading to memory corruption. This can make the application unresponsive or crash."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, users should avoid opening untrusted or suspicious PDF documents with LibreOffice Draw."}, "name": "CVE-2026-63273", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-09-22T11:10:13Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63273\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63273\nhttps://www.libreoffice.org/about-us/security/advisories/cve-2026-63273"], "threat_severity": "Moderate"}

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