CVE-2014-1776

CriticalActively exploited (CISA KEV)

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."

SeverityCritical
CVSS9.8
Exploit probability—
ProductMicrosoft Internet Explorer
PublishedApr 27, 2014
First seenApr 27, 2014
Added to KEVJan 28, 2022

How to fix

CISA required action

Apply updates per vendor instructions.

CISA due date: Jul 28, 2022

Affected products

ProductAffected versionsFixed in
microsoft internet_explorer6, 7, 8, 9, 10, 11—

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