SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2016-3359

Microsoft Excel 2007 SP3, Excel 2010 SP2, Office Compatibility Pack SP3, and Excel Viewer allow remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office Memory Corruption Vulnerability."

HIGH 7.8EPSS 17.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 17.5%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Microsoft Excel 2007 SP3, Excel 2010 SP2, Office Compatibility Pack SP3, and Excel Viewer 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
17.47% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Affected
microsoft/excel · microsoft/excel viewer · microsoft/office compatibility pack
Source
secure@microsoft.com
EPSS trend
0%10%20%21 September 2026: 16.34%22 September 2026: 17.47%26 October 2026: 17.47%21 September 202626 October 2026

EPSS moved from 16.3% on 21 September 2026 to 17.5% on 26 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.