ExploitedIn CISA KEVFix available

CVE-2015-1641

Exploitation confirmed. First attested on 2021-11-03 by CISA-ADP, CISA KEV, GCVE · kevintel.

Published2015-04-14
WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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."

Timeline

dates in UTC

2015-04-1420:59CVE publishedNVD
2021-11-03Listed as exploited by GCVEGCVE
2021-11-03Exploitation first reportedCISA KEV
2021-11-03Added to the CISA KEV catalogCISA KEV
2025-02-1019:34SSVC exploitation set to activeCISA-ADP
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2015-1641?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2015-1641?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Microsoft word

Branch	Affected	Fixed in	Source
2007.x	= 2007	no fix published	NVD
2010.x	= 2010	no fix published	NVD
2011.x	= 2011	no fix published	NVD
2013.x	= 2013	no fix published	NVD

Microsoft office web apps

Branch	Affected	Fixed in	Source
2010.x	= 2010	no fix published	NVD
2013.x	= 2013	no fix published	NVD

Microsoft sharepoint server

Branch	Affected	Fixed in	Source
2010.x	= 2010	no fix published	NVD
2013.x	= 2013	no fix published	NVD

3 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

CISA’s required action: Apply updates per vendor instructions.due 2022-05-03

Advisories and patches

docs.microsoft.comPatch · Vendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedCyberclues/rtf_exploit_extractor

CISA Known Exploited Vulnerability

Date Added: 2021-11-03
Patch Due Date: 2022-05-03
Ransomware Use: Unknown
Required Action: Apply updates per vendor instructions.

Sources

CISA KEVKEV entry2021-11-03
GCVEexploitation2021-11-03
CISA-ADPSSVC decisionactive2025-02-10
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.17.82025-02-10
NVDCVSS 3.17.8read 2026-10-23
NVDCVSS 2.09.3read 2026-10-23
CISA-ADPweakness (CWE)CWE-7872025-02-10
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score97.2 %read 2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2015-04-14
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2015-1641?

Is CVE-2015-1641 actively exploited?

Yes. CVE-2015-1641 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-05-03.

What is the CVSS score for CVE-2015-1641?

CVE-2015-1641 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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