{"id":"CVE-2018-8577","aliases":["EUVD-2018-20194","GHSA-wwq4-883j-hr97"],"status":"published","title":"A remote code execution vulnerability exists in Microsoft Excel software when the software fails...","description":"A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka \"Microsoft Excel Remote Code Execution Vulnerability.\" This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8574.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.19059,"percentile":0.97329,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2018-11-14T01:00:00Z","modified":"2026-06-17T02:05:08Z","products":[{"vendor":"microsoft","product":"excel"},{"vendor":"microsoft","product":"excel_viewer"},{"vendor":"microsoft","product":"microsoft excel"},{"vendor":"microsoft","product":"microsoft excel viewer"},{"vendor":"microsoft","product":"microsoft office"},{"vendor":"microsoft","product":"office"},{"vendor":"microsoft","product":"office_365_proplus"},{"vendor":"microsoft","product":"office_compatibility_pack"},{"vendor":"microsoft","product":"office_web_apps_server"}],"references":[{"url":"http://www.securityfocus.com/bid/105834","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1042134","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8577","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8577"},{"url":"https://github.com/advisories/GHSA-wwq4-883j-hr97"}],"sources":{"cve":[{"id":"CVE-2018-8577","description":"A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka \"Microsoft Excel Remote Code Execution Vulnerability.\" This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8574.","status":"published","published":"2018-11-14T01:00:00Z","modified":"2024-08-05T07:02:25.927Z","updated_at":"2026-11-02T14:35:04.540365Z"}],"euvd":[{"id":"EUVD-2018-20194","description":"A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka \"Microsoft Excel Remote Code Execution Vulnerability.\" This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8574.","status":"published","published":"2018-11-14T01:00:00Z","modified":"2024-08-05T07:02:25Z","updated_at":"2026-11-03T02:40:02.008103Z"}],"ghsa":[{"id":"GHSA-wwq4-883j-hr97","title":"A remote code execution vulnerability exists in Microsoft Excel software when the software fails...","description":"A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka \"Microsoft Excel Remote Code Execution Vulnerability.\" This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8574.","status":"published","published":"2022-05-13T01:21:00Z","modified":"2023-02-01T05:06:16Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T14:50:20.282326Z"}],"nvd":[{"id":"CVE-2018-8577","description":"A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka \"Microsoft Excel Remote Code Execution Vulnerability.\" This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8574.","status":"published","published":"2018-11-14T01:29:01.847Z","modified":"2026-06-17T02:05:08.133Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:04:47.196456Z"}]}}