CVE-2014-2763 in Internet Explorer
Summary
by MITRE
Microsoft Internet Explorer 10 and 11 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," a different vulnerability than CVE-2014-1772, CVE-2014-1780, CVE-2014-1794, CVE-2014-1797, CVE-2014-1802, CVE-2014-2756, CVE-2014-2764, CVE-2014-2769, and CVE-2014-2771.
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Analysis
by VulDB Data Team • 08/25/2025
The vulnerability identified as CVE-2014-2763 represents a critical memory corruption flaw within Microsoft Internet Explorer versions 10 and 11 that enables remote code execution through malicious web content. This vulnerability operates as a distinct threat vector from several other contemporaneous Internet Explorer flaws, specifically excluding CVE-2014-1772, CVE-2014-1780, CVE-2014-1794, CVE-2014-1797, CVE-2014-1802, CVE-2014-2756, CVE-2014-2764, CVE-2014-2769, and CVE-2014-2771, demonstrating the complex and multifaceted nature of browser security vulnerabilities during this period. The flaw resides in the browser's handling of memory management during web page rendering, creating opportunities for attackers to manipulate memory structures through carefully crafted web content.
The technical implementation of this vulnerability involves a specific memory corruption pattern that occurs when Internet Explorer processes certain web elements or JavaScript code. Attackers can exploit this weakness by hosting malicious web pages that trigger improper memory handling, leading to either arbitrary code execution or denial of service conditions. The memory corruption typically manifests through buffer overflows, use-after-free conditions, or other memory management errors that allow attackers to inject and execute malicious code within the browser's memory space. This type of vulnerability falls under the Common Weakness Enumeration category CWE-125, which deals with out-of-bounds read conditions, and CWE-787, which addresses out-of-bounds write vulnerabilities.
The operational impact of CVE-2014-2763 extends beyond simple exploitation scenarios, as it represents a significant threat to enterprise security environments where Internet Explorer remains in use. Organizations running these vulnerable browser versions face potential compromise through drive-by download attacks, where simply visiting a malicious website can result in system compromise without user interaction. The vulnerability's remote execution capability means that attackers can leverage it across network boundaries without requiring local access to target systems. This characteristic aligns with the ATT&CK framework's technique T1203, which covers exploitation for execution through web-based attacks, and T1059, which covers command and scripting interpreters for remote execution.
Mitigation strategies for this vulnerability require immediate patching of affected Internet Explorer versions, as Microsoft released security updates specifically addressing this flaw. Organizations should implement browser hardening measures including disabling unnecessary browser features, implementing content security policies, and utilizing sandboxing technologies to limit potential exploitation impact. Network-level defenses such as web application firewalls and intrusion prevention systems can help detect and block exploitation attempts. Additionally, user education regarding safe browsing practices and awareness of social engineering tactics that might accompany such attacks remains crucial for comprehensive protection. The vulnerability's classification as a remote code execution flaw necessitates immediate remediation, as it provides attackers with a direct path to system compromise that can lead to data theft, lateral movement, and persistent access within network environments.