SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2016-3358

Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016, Excel 2016 for Mac, Office Compatibility Pack SP3, Excel Viewer, Excel Services on SharePoint Server 2007 SP3, Excel Services on SharePoint Server 2010 SP2, Excel…

HIGH 7.8EPSS 18.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 18.4%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016, Excel 2016 for Mac, Office Compatibility Pack SP3, Excel Viewer, Excel Services on SharePoint Server 2007 SP3, Excel Services on SharePoint Server 2010 SP2, Excel Automation Services on SharePoint Server 2013 SP1, and Office Online Server allow remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office Memory Corruption Vulnerability."

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
18.43% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Affected
microsoft/excel · microsoft/excel for mac · microsoft/excel viewer · microsoft/office compatibility pack · microsoft/office online server · microsoft/sharepoint designer
Source
secure@microsoft.com
EPSS trend
0%10%20%21 September 2026: 17.25%22 September 2026: 18.43%4 November 2026: 18.43%21 September 20264 November 2026

EPSS moved from 17.3% on 21 September 2026 to 18.4% on 4 November 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.