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CVE-2014-1776

CRITICALCISA KEV

9.8

Description

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the CMarkup::IsConnectedToPrimaryMarkup function, as exploited in the wild in April 2014. NOTE: this issue originally emphasized VGX.DLL, but Microsoft clarified that "VGX.DLL does not contain the vulnerable code leveraged in this exploit. Disabling VGX.DLL is an exploit-specific workaround that provides an immediate, effective workaround to help block known attacks."

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/27/2014

Last Modified4/21/2026

Sourcekev

Honeypot Sightings0

CISA KEV

VendorMicrosoft

ProductInternet Explorer

Vulnerability NameMicrosoft Internet Explorer Memory Corruption Vulnerability

KEV Date Added2022-01-28

Remediation Due Date2022-07-28

Ransomware UseUnknown

Affected Products

microsoft:internet_explorermicrosoft:windows_7microsoft:windows_8microsoft:windows_8.1microsoft:windows_rtmicrosoft:windows_rt_8.1microsoft:windows_server_2003microsoft:windows_server_2008microsoft:windows_server_2012microsoft:windows_vistamicrosoft:windows_xp

Weaknesses (CWE)

CWE-416CWE-416

References

http://blogs.technet.com/b/srd/archive/2014/04/30/protection-strategies-for-the-security-advisory-2963983-ie-0day.aspx(secure@microsoft.com)

http://secunia.com/advisories/57908(secure@microsoft.com)

http://securitytracker.com/id?1030154(secure@microsoft.com)

http://www.fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploit-targeting-internet-explorer-versions-9-through-11-identified-in-targeted-attacks.html(secure@microsoft.com)

http://www.kb.cert.org/vuls/id/222929(secure@microsoft.com)

http://www.osvdb.org/106311(secure@microsoft.com)

http://www.securityfocus.com/bid/67075(secure@microsoft.com)

http://www.signalsec.com/cve-2014-1776-ie-0day-analysis/(secure@microsoft.com)

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-021(secure@microsoft.com)

https://technet.microsoft.com/library/security/2963983(secure@microsoft.com)

http://blogs.technet.com/b/srd/archive/2014/04/30/protection-strategies-for-the-security-advisory-2963983-ie-0day.aspx(af854a3a-2127-422b-91ae-364da2661108)

http://secunia.com/advisories/57908(af854a3a-2127-422b-91ae-364da2661108)

http://securitytracker.com/id?1030154(af854a3a-2127-422b-91ae-364da2661108)

http://www.fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploit-targeting-internet-explorer-versions-9-through-11-identified-in-targeted-attacks.html(af854a3a-2127-422b-91ae-364da2661108)

http://www.kb.cert.org/vuls/id/222929(af854a3a-2127-422b-91ae-364da2661108)

http://www.osvdb.org/106311(af854a3a-2127-422b-91ae-364da2661108)

http://www.securityfocus.com/bid/67075(af854a3a-2127-422b-91ae-364da2661108)

http://www.signalsec.com/cve-2014-1776-ie-0day-analysis/(af854a3a-2127-422b-91ae-364da2661108)

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-021(af854a3a-2127-422b-91ae-364da2661108)

https://technet.microsoft.com/library/security/2963983(af854a3a-2127-422b-91ae-364da2661108)

https://www.vicarius.io/vsociety/posts/cve-2014-1776-use-after-free-vulnerability-in-microsoft-internet-explorer-detection-script(af854a3a-2127-422b-91ae-364da2661108)

https://www.vicarius.io/vsociety/posts/cve-2014-1776-use-after-free-vulnerability-in-microsoft-internet-explorer-mitigation-scripts(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-1776(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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