CVE-2026-6045

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{"bugzilla": {"description": "libreoffice: LibreOffice: Heap buffer overflow via crafted EMF+ graphics import", "id": "2488957", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488957"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.6", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H", "status": "draft"}, "cwe": "CWE-190", "details": ["LibreOffice can import EMF+ graphics, which may be embedded in documents. A heap buffer overflow existed when importing an EMF+ gradient brush. The number of gradient blend points was read from the file and used to compute an allocation size, but that multiplication could overflow, so a small buffer was allocated and then filled as if it were large, writing past its end. In fixed versions the blend-point count is checked against the data actually available before allocating.", "A flaw was found in LibreOffice. A heap buffer overflow exists when importing EMF+ graphics, which may be embedded in documents. An attacker could exploit this by convincing a user to open a specially crafted document. This could lead to denial of service or memory corruption, potentially allowing for arbitrary code execution."], "mitigation": {"lang": "en:us", "value": "To reduce the risk of exploitation, users should avoid opening untrusted or suspicious documents with LibreOffice. This vulnerability requires user interaction to trigger the heap buffer overflow. While specific configuration to disable EMF+ graphics processing may not be readily available, running LibreOffice in a sandboxed environment can help limit the impact of a successful attack."}, "name": "CVE-2026-6045", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-15T16:22:16Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-6045\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-6045\nhttps://www.libreoffice.org/about-us/security/advisories/cve-2026-6045"], "statement": "Moderate impact. This heap buffer overflow in LibreOffice's EMF+ graphics import requires user interaction to open a malicious document. While it could lead to denial of service or arbitrary code execution, the need for user interaction and the specific file format limits its immediate widespread impact on Red Hat Enterprise Linux desktop environments.", "threat_severity": "Moderate"}

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