CVE-2014-2767 in Internet Explorer
Summary
by MITRE
Microsoft Internet Explorer 6 and 7 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability."
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Analysis
by VulDB Data Team • 08/25/2025
The vulnerability identified as CVE-2014-2767 represents a critical memory corruption flaw in Microsoft Internet Explorer versions 6 and 7 that enables remote code execution or denial of service attacks through malicious web content. This vulnerability falls under the Common Weakness Enumeration category CWE-125, which describes out-of-bounds read conditions that can lead to memory corruption and arbitrary code execution. The flaw specifically affects legacy browser versions that were widely deployed in enterprise environments during the early 2010s, creating significant security risks for organizations still maintaining support for these outdated platforms.
The technical mechanism behind this vulnerability involves improper handling of memory structures during web page rendering processes in Internet Explorer. When users navigate to a specially crafted website, the browser's memory management system encounters malformed data structures that trigger buffer overflows or heap corruption. This memory corruption allows attackers to overwrite critical memory locations and inject malicious code that executes with the privileges of the victim user. The vulnerability is particularly dangerous because it can be exploited through simple web navigation without requiring any special user interaction beyond visiting the malicious site.
From an operational perspective, this vulnerability presents severe implications for organizations that have not fully migrated away from legacy Internet Explorer versions. The attack surface is extensive since any web browser user could be targeted through phishing emails, compromised websites, or malicious advertisements that redirect to exploit code. The exploitability of this vulnerability is enhanced by the fact that Internet Explorer 6 and 7 were commonly used in corporate environments where users had administrative privileges, potentially allowing attackers to gain full system compromise. The denial of service aspect of this vulnerability can also be leveraged to disrupt business operations by causing browser crashes or system instability, creating cascading effects in enterprise networks.
Organizations should implement immediate mitigations including mandatory browser upgrades to supported versions, deployment of security patches from Microsoft, and network-level protections such as web application firewalls and content filtering systems. The vulnerability aligns with ATT&CK technique T1203, which involves exploitation of web applications for remote code execution, and T1059, which covers command and script interpreters used in exploitation. Security teams should also consider implementing browser isolation technologies and user education programs to reduce the risk of successful exploitation, as the vulnerability's impact is significantly amplified when users inadvertently visit compromised websites. The remediation strategy must prioritize immediate patch deployment followed by comprehensive security assessments of legacy systems that may still be operating with unsupported browser versions.