{"cve":{"cve_id":"CVE-2011-1989","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.27767,"epss_percentile":0.97833,"epss_as_of":"2026-06-23","description":"Microsoft Excel 2003 SP3 and 2007 SP2; Excel in Office 2007 SP2; Excel 2010 Gold and SP1; Excel in Office 2010 Gold and SP1; Office 2004, 2008, and 2011 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2; Excel Services on Office SharePoint Server 2007 SP2; Excel Services on Office SharePoint Server 2010 Gold and SP1; and Excel Web App 2010 Gold and SP1 do not properly parse conditional expressions associated with formatting requirements, which allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka \"Excel Conditional Expression Parsing Vulnerability.\"","published_at":"2011-09-15T10:00:00Z","last_modified_at":"2026-06-16T23:30:33.470000Z","cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-20"],"nvd_references":["https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12974","https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-072","http://www.us-cert.gov/cas/techalerts/TA11-256A.html"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:05:52.397060Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"excel","product_name":"Excel","version_start":"2003","version_start_inclusive":true,"version_end":"2003","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:excel:2003:sp3:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"excel","product_name":"Excel","version_start":"2007","version_start_inclusive":true,"version_end":"2007","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:excel:2007:sp2:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"excel","product_name":"Excel","version_start":"2010","version_start_inclusive":true,"version_end":"2010","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:excel:2010:*:x32:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"excel","product_name":"Excel","version_start":"2010","version_start_inclusive":true,"version_end":"2010","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:excel:2010:*:x64:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"excel","product_name":"Excel","version_start":"2010","version_start_inclusive":true,"version_end":"2010","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:excel:2010:sp1:x32:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"excel","product_name":"Excel","version_start":"2010","version_start_inclusive":true,"version_end":"2010","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:excel:2010:sp1:x64:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"excel-viewer","product_name":"excel_viewer","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:microsoft:excel_viewer:*:sp2:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"excel-web-app","product_name":"excel_web_app","version_start":"2010","version_start_inclusive":true,"version_end":"2010","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:excel_web_app:2010:*:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"excel-web-app","product_name":"excel_web_app","version_start":"2010","version_start_inclusive":true,"version_end":"2010","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:excel_web_app:2010:sp1:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"office","product_name":"office","version_start":"2004","version_start_inclusive":true,"version_end":"2004","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:office:2004:*:mac:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"office","product_name":"office","version_start":"2007","version_start_inclusive":true,"version_end":"2007","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:office:2007:sp2:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"office","product_name":"office","version_start":"2008","version_start_inclusive":true,"version_end":"2008","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:office:2008:*:mac:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"office","product_name":"office","version_start":"2010","version_start_inclusive":true,"version_end":"2010","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:office:2010:*:x32:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"office","product_name":"office","version_start":"2010","version_start_inclusive":true,"version_end":"2010","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:microsoft:office:2010:*:x64:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"Microsoft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