Vulnerability record

CVE-2014-6332

Microsoft Windows Object Linking & Embedding (OLE) Automation Array Remote Code Execution Vulnerability

HighExploitation confirmedCISA KEV

What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Windows, fix it now.

CISA required action: Apply updates per vendor instructions.

US federal civilian agencies must remediate by Apr 15, 2022.

Patch status

Official fix available since Sep 30, 2026

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

Patch or advisory on docs.microsoft.com (opens in a new tab)

Description

OleAut32.dll in OLE in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code via a crafted web site, as demonstrated by an array-redimensioning attempt that triggers improper handling of a size value in the SafeArrayDimen function, aka "Windows OLE Automation Array Remote Code Execution Vulnerability."

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
Product	Vendor	Source
Windows	Microsoft	KEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog. Version details have not been published yet.

Intelligence timeline

Developments from the last 30 days, newest first.

CVSS scoredUpdateKEVSep 30, 2026
CVE-2014-6332 scored CVSS 8.8: Microsoft Windows, Microsoft Windows Object Linking & Embedding (OLE) Automation Array Remote Code Execution Vulnerability
CISA lists this as exploited in the wild. Unpatched Windows systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
Patch releasedUpdateKEVSep 30, 2026
Patch released for CVE-2014-6332: Microsoft Windows, Microsoft Windows Object Linking & Embedding (OLE) Automation Array Remote Code Execution Vulnerability
An official fix is now available for Microsoft Windows. This vulnerability is being exploited, so apply it promptly.
Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2014-6332
packetstormsecurity.com http://packetstormsecurity.com/files/134053/Avant-Browser-Lite-Ultimate-Remote-Code-Execution.html
packetstormsecurity.com http://packetstormsecurity.com/files/134061/The-World-Browser-3.0-Final-Remote-Code-Execution.html
packetstormsecurity.com http://packetstormsecurity.com/files/134062/HTML-Compiler-Remote-Code-Execution.html
packetstormsecurity.com http://packetstormsecurity.com/files/134064/Microsoft-Compiled-HTML-Help-Remote-Code-Execution.html
packetstormsecurity.com http://packetstormsecurity.com/files/134079/Winamp-Bento-Browser-Remote-Code-Execution.html
securityintelligence.com http://securityintelligence.com/ibm-x-force-researcher-finds-significant-vulnerability-in-microsoft-windows
kb.cert.org http://www.kb.cert.org/vuls/id/158647
securityfocus.com http://www.securityfocus.com/bid/70952
securitytracker.com http://www.securitytracker.com/id/1031184
us-cert.gov http://www.us-cert.gov/ncas/alerts/TA14-318B
docs.microsoft.com https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-064
forsec.nl https://forsec.nl/wp-content/uploads/2014/11/ms14_064_ie_olerce.rb_.txt
exploit-db.com https://www.exploit-db.com/exploits/37668/
exploit-db.com https://www.exploit-db.com/exploits/37800/
exploit-db.com https://www.exploit-db.com/exploits/38500/
exploit-db.com https://www.exploit-db.com/exploits/38512/
cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-6332