{"id":"CVE-2018-8577","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-8577","generatedAt":"2026-10-28T20:57:46.355Z","title":"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,…","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.","published":"2018-11-14T01:29:02.000Z","lastModified":"2026-06-17T02:05:08.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.0","score":7.8,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":[],"affected":["microsoft/excel","microsoft/excel viewer","microsoft/office","microsoft/office 365 proplus","microsoft/office compatibility pack","microsoft/office web apps server"],"epss":{"score":0.19059,"percentile":0.97297,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.17386,"percentile":0.97041},{"date":"2026-09-22","score":0.19059,"percentile":0.97186}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 19.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/105834","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"http://www.securitytracker.com/id/1042134","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8577","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"http://www.securityfocus.com/bid/105834","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1042134","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8577","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-8577","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}