{"cve":"CVE-2009-3129","nvd":{"published":"2009-11-11T19:30:00.530","modified":"2026-06-16T23:11:00.237","status":"Analyzed","description":"Microsoft Office Excel 2002 SP3, 2003 SP3, and 2007 SP1 and SP2; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Office Excel Viewer 2003 SP3; Office Excel Viewer SP1 and SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allows remote attackers to execute arbitrary code via a spreadsheet with a FEATHEADER record containing an invalid cbHdrData size element that affects a pointer offset, aka \"Excel Featheader Record Memory Corruption Vulnerability.\"","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-787"],"references":["http://archives.neohapsis.com/archives/bugtraq/2009-11/0080.html","http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=832","http://osvdb.org/59860","http://www.exploit-db.com/exploits/14706","http://www.securityfocus.com/bid/36945"],"products":["microsoft:excel","microsoft:excel_viewer","microsoft:office","microsoft:open_xml_file_format_converter"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-3129","score":0.84034,"percentile":0.99693,"date":"2026-10-31"},"kev":{"cve":"CVE-2009-3129","date_added":"2022-03-03","due_date":"2022-03-24","vendor":"Microsoft","product":"Excel","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}