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Vulnerability record · CVE-2018-8539 · published 14 November 2018

CVE-2018-8539: Microsoft office vulnerability

Microsoft · Office

A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory, aka "Microsoft Word Remote Code Execution Vulnerability." This affects Microsoft SharePoint Server, Microsoft Office. This CVE ID is unique from CVE-2018-8573.

7.8 CVSS 3.0 High EPSS 19% · top 2.8%
7.8CVSS 3.0 base score, v2 9.3
19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory, aka "Microsoft Word Remote Code Execution Vulnerability." This affects Microsoft SharePoint Server, Microsoft Office. This CVE ID is unique from CVE-2018-8573.

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/105835 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042112 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8539 PatchVendor Advisory
http://www.securityfocus.com/bid/105835 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042112 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8539 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-8539), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.