CVE-2018-8504
A remote code execution vulnerability exists in Microsoft Word software when the software fails to properly handle objects in Protected View, aka "Microsoft Word Remote Code Execution Vulnerability." This affects Microsoft SharePoint Server, Office 365…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 19.7%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
A remote code execution vulnerability exists in Microsoft Word software when the software fails to properly handle objects in Protected View, aka "Microsoft Word Remote Code Execution Vulnerability." This affects Microsoft SharePoint Server, Office 365 ProPlus, Microsoft Office, Microsoft Word.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 19.71% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- microsoft/office · microsoft/office 365 proplus · microsoft/office web apps · microsoft/sharepoint server · microsoft/word
- Source
- secure@microsoft.com
EPSS moved from 18.4% on 21 September 2026 to 19.7% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.securityfocus.com/bid/105499Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041840Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8504Patch, Vendor Advisory
- http://www.securityfocus.com/bid/105499Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041840Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8504Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.