CVE-2018-8247
An elevation of privilege vulnerability exists when Office Web Apps Server 2013 and Office Online Server fail to properly handle web requests, aka "Microsoft Office Elevation of Privilege Vulnerability." This affects Microsoft Office, Microsoft Office…
Does this matter?
Lower severity and a low EPSS score (3.47%). Track it; it rarely justifies an emergency change on its own.
Description
An elevation of privilege vulnerability exists when Office Web Apps Server 2013 and Office Online Server fail to properly handle web requests, aka "Microsoft Office Elevation of Privilege Vulnerability." This affects Microsoft Office, Microsoft Office Online Server. This CVE ID is unique from CVE-2018-8245.
- CVSS 3.0
- 5.4 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- EPSS
- 3.47% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- microsoft/office online server · microsoft/office web apps
- Source
- secure@microsoft.com
EPSS moved from 4.8% on 21 September 2026 to 3.5% on 27 October 2026.
References
- http://www.securityfocus.com/bid/104319Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041104Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8247Patch, Vendor Advisory
- http://www.securityfocus.com/bid/104319Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041104Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8247Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.