CVE-2014-1776
highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.827 · 100 %ileEURUUSadded 2022-01-28remediate by 2022-07-28
required action Apply updates per vendor instructions.
EPSS · scored 2026-10-22
Microsoft Internet Explorer Memory Corruption Vulnerability
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."
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9.8–10
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (13)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (27)
External citations — patches, advisories, analysis.
- http://secunia.com/advisories/57908cnnvd
- http://www.fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploit-targeting-internet-explorer-versions-9-through-11-identified-in-targeted-attacks.htmlcnnvd
- https://technet.microsoft.com/library/security/2963983cnnvd
- https://technet.microsoft.com/library/security/ms14-021Patchcnnvd
- http://blogs.technet.com/b/srd/archive/2014/04/30/protection-strategies-for-the-security-advisory-2963983-ie-0day.aspxenisa_euvd
- http://secunia.com/advisories/57908enisa_euvd
- http://securitytracker.com/id?1030154enisa_euvd
- http://www.fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploit-targeting-internet-explorer-versions-9-through-11-identified-in-targeted-attacks.htmlenisa_euvd
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