VULNERABILITY INTELLIGENCE

CVE-2014-1776

CVSS score9.8 CRITICAL
EPSS probability82.68%
CISA KEVKnown exploited vulnerability
Published2014-04-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

Microsoft Internet Explorer Memory Corruption Vulnerability

Vendor / product: Microsoft / Internet Explorer

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."

Weakness classification

  • CWE-416: Use After Free

Primary references