{"cve":{"cve_id":"CVE-2017-11826","is_kev":true,"kev_date_added":"2022-03-03","kev_vendor_project":"Microsoft","kev_product":"Office","kev_vulnerability_name":"Microsoft Office Remote Code Execution Vulnerability","kev_short_description":"A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user.","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2022-03-24","kev_known_ransomware":false,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2017-11826","kev_cwes":["CWE-119"],"epss_score":0.81627,"epss_percentile":0.99595,"epss_as_of":"2026-06-23","description":"Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and Office Online Server allow remote code execution when the software fails to properly handle objects in memory.","published_at":"2017-10-13T13:00:00Z","last_modified_at":null,"cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"active","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-119"],"nvd_references":["https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826","https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html","http://www.securityfocus.com/bid/101219","https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/","http://www.securitytracker.com/id/1039541","https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/"],"vuln_status":null,"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":"2026-06-24T00:09:31.350578Z","updated_at":"2026-06-28T23:09:26.431687Z"},"effective_severity":"HIGH","badges":["kev","epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"microsoft-corporation","vendor_name":"Microsoft Corporation","product_slug":"microsoft-office","product_name":"Microsoft Office","version_start":"Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, Office Online Server.","version_start_inclusive":true,"version_end":"Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, Office Online Server.","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft-corporation:microsoft-office:Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, Office Online Server.:Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, Office Online Server."}],"exploit_refs":[],"news":[],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html","source_type":"MISC","tags":["patch"]},{"url":"http://www.securityfocus.com/bid/101219","source_type":"MISC","tags":[]},{"url":"https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/","source_type":"MISC","tags":[]},{"url":"http://www.securitytracker.com/id/1039541","source_type":"MISC","tags":[]},{"url":"https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2017-10-13T13:00:00Z","label":"CVE published","source":null},{"type":"cisa_reported","at":"2022-03-03T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"ssvc_changed","at":"2026-06-24T00:31:06.710831Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:06.710831Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:06.710831Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:06.710831Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:06.710831Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:06.710831Z","label":"CVSS score revised","source":"vulnrichment"}]}