{"id":"CVE-2011-0097","aliases":["EUVD-2011-0123","GHSA-rwhw-8cjm-hq34"],"status":"published","title":"Integer underflow in Microsoft Excel 2002 SP3, 2003 SP3, 2007 SP2, and 2010; Office 2004 and 2008...","description":"Integer underflow in Microsoft Excel 2002 SP3, 2003 SP3, 2007 SP2, and 2010; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 allows remote attackers to execute arbitrary code via a crafted 400h substream in an Excel file, which triggers a stack-based buffer overflow, aka \"Excel Integer Overrun Vulnerability.\"","severity":{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.31553,"percentile":0.98299,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-189"],"published":"2011-04-13T18:00:00Z","modified":"2026-06-16T23:26:48Z","products":[{"vendor":"microsoft","product":"excel"},{"vendor":"microsoft","product":"excel_viewer"},{"vendor":"microsoft","product":"office"},{"vendor":"microsoft","product":"office_compatibility_pack"},{"vendor":"microsoft","product":"open_xml_file_format_converter"}],"references":[{"url":"http://www.us-cert.gov/cas/techalerts/TA11-102A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","US Government Resource"]},{"url":"http://secunia.com/advisories/39122","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://secunia.com/secunia_research/2011-31","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"http://osvdb.org/71758","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.securitytracker.com/id?1025337","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-021","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12612","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.securityfocus.com/bid/47201","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2011/0940","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-0097"},{"url":"https://github.com/advisories/GHSA-rwhw-8cjm-hq34"}],"sources":{"cve":[{"id":"CVE-2011-0097","description":"Integer underflow in Microsoft Excel 2002 SP3, 2003 SP3, 2007 SP2, and 2010; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 allows remote attackers to execute arbitrary code via a crafted 400h substream in an Excel file, which triggers a stack-based buffer overflow, aka \"Excel Integer Overrun Vulnerability.\"","status":"published","published":"2011-04-13T18:00:00Z","modified":"2024-08-06T21:43:14.769Z","updated_at":"2026-11-02T14:35:39.447402Z"}],"euvd":[{"id":"EUVD-2011-0123","description":"Integer underflow in Microsoft Excel 2002 SP3, 2003 SP3, 2007 SP2, and 2010; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 allows remote attackers to execute arbitrary code via a crafted 400h substream in an Excel file, which triggers a stack-based buffer overflow, aka \"Excel Integer Overrun Vulnerability.\"","status":"published","published":"2011-04-13T18:00:00Z","modified":"2024-08-06T21:43:14Z","updated_at":"2026-11-03T01:56:01.523697Z"}],"ghsa":[{"id":"GHSA-rwhw-8cjm-hq34","title":"Integer underflow in Microsoft Excel 2002 SP3, 2003 SP3, 2007 SP2, and 2010; Office 2004 and 2008...","description":"Integer underflow in Microsoft Excel 2002 SP3, 2003 SP3, 2007 SP2, and 2010; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 allows remote attackers to execute arbitrary code via a crafted 400h substream in an Excel file, which triggers a stack-based buffer overflow, aka \"Excel Integer Overrun Vulnerability.\"","status":"published","published":"2022-05-14T02:36:06Z","modified":"2023-02-02T05:05:53Z","updated_at":"2026-11-02T14:52:11.741214Z"}],"nvd":[{"id":"CVE-2011-0097","description":"Integer underflow in Microsoft Excel 2002 SP3, 2003 SP3, 2007 SP2, and 2010; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 allows remote attackers to execute arbitrary code via a crafted 400h substream in an Excel file, which triggers a stack-based buffer overflow, aka \"Excel Integer Overrun Vulnerability.\"","status":"published","published":"2011-04-13T18:55:01.08Z","modified":"2026-06-16T23:26:48.18Z","cvss":[{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:02:07.221228Z"}]}}