SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-1027

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

HIGH 7.8EPSS 19.0%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 19.0%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka "Microsoft Excel Remote Code Execution Vulnerability." This affects Microsoft Excel, Microsoft Office. This CVE ID is unique from CVE-2018-0920, CVE-2018-1011, CVE-2018-1029.

CVSS 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
19.05% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
microsoft/excel · microsoft/office compatibility pack
Source
secure@microsoft.com
EPSS trend
0%10%20%27 October 2026: 19.05%27 October 202627 October 2026

EPSS 19.0% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

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