CVE-2014-1776

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."
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
microsoftCNA
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CVEADP
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CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 98%
Common Weakness Enumeration
References
http://blogs.technet.com/b/srd/archive/2014/04/30/protection-strategies-for-the-security-advisory-2963983-ie-0day.aspx
http://secunia.com/advisories/57908
http://securitytracker.com/id?1030154
http://www.fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploit-targeting-internet-explorer-versions-9-through-11-identified-in-targeted-attacks.html
http://www.kb.cert.org/vuls/id/222929
http://www.osvdb.org/106311
http://www.securityfocus.com/bid/67075
http://www.signalsec.com/cve-2014-1776-ie-0day-analysis/
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-021
https://technet.microsoft.com/library/security/2963983
http://blogs.technet.com/b/srd/archive/2014/04/30/protection-strategies-for-the-security-advisory-2963983-ie-0day.aspx
http://secunia.com/advisories/57908
http://securitytracker.com/id?1030154
http://www.fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploit-targeting-internet-explorer-versions-9-through-11-identified-in-targeted-attacks.html
http://www.kb.cert.org/vuls/id/222929
http://www.osvdb.org/106311
http://www.securityfocus.com/bid/67075
http://www.signalsec.com/cve-2014-1776-ie-0day-analysis/
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-021
https://technet.microsoft.com/library/security/2963983