SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-8281

A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability." This affects Microsoft Excel Viewer, Microsoft PowerPoint…

HIGH 7.8EPSS 21.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 21.3%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability." This affects Microsoft Excel Viewer, Microsoft PowerPoint Viewer, Microsoft Office, Microsoft Office Word Viewer.

CVSS 3.0
7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
21.34% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
microsoft/office · microsoft/office compatibility pack · microsoft/office powerpoint viewer · microsoft/office word viewer
Source
secure@microsoft.com
EPSS trend
0%13%25%21 September 2026: 18.71%22 September 2026: 20.78%27 October 2026: 21.34%21 September 202627 October 2026

EPSS moved from 18.7% on 21 September 2026 to 21.3% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.