{"id":"CVE-2018-8598","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-8598","generatedAt":"2026-10-28T21:20:17.404Z","title":"An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka \"Microsoft Excel Information Disclosure Vulnerability.\" This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel.","description":"An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka \"Microsoft Excel Information Disclosure Vulnerability.\" This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel. This CVE ID is unique from CVE-2018-8627.","published":"2018-12-12T00:29:01.000Z","lastModified":"2026-06-17T02:05:10.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.0","score":4.7,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N"},"cwe":[],"affected":["microsoft/excel","microsoft/office","microsoft/office 365 proplus"],"epss":{"score":0.06217,"percentile":0.93494,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.04946,"percentile":0.91803},{"date":"2026-09-22","score":0.06217,"percentile":0.9321}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (6.22%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/106102","tags":["Third Party Advisory","VDB Entry"],"source":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8598","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"http://www.securityfocus.com/bid/106102","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8598","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-8598","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."}