SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2015-1641

Microsoft Office Memory Corruption Vulnerability

KEVHIGH 7.8EPSS 96.8%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Microsoft Word 2007 SP3, Office 2010 SP2, Word 2010 SP2, Word 2013 SP1, Word 2013 RT SP1, Word for Mac 2011, Office Compatibility Pack SP3, Word Automation Services on SharePoint Server 2010 SP2 and 2013 SP1, and Office Web Apps Server 2010 SP2 and 2013 SP1 allow remote attackers to execute arbitrary code via a crafted RTF document, aka "Microsoft Office Memory Corruption Vulnerability."

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
96.76% probability · 100th percentile
CISA KEV
Listed 3 November 2021 · due 3 May 2022
Weakness
CWE-787
Affected
microsoft/office · microsoft/office compatibility pack · microsoft/office web apps · microsoft/outlook · microsoft/sharepoint server · microsoft/word
Source
secure@microsoft.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2015-1641

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.