CVE-2014-0312 in Internet Explorer
Summary
by MITRE
Microsoft Internet Explorer 8 through 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-2014-0297, CVE-2014-0308, and CVE-2014-0324.
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Analysis
by VulDB Data Team • 05/07/2026
This vulnerability represents a critical memory corruption flaw affecting Microsoft Internet Explorer versions 8 through 11, classified under the Common Weakness Enumeration framework as CWE-125: Out-of-bounds Read. The vulnerability arises from improper handling of memory operations when processing specially crafted web content, creating opportunities for attackers to execute arbitrary code or induce system crashes. The flaw specifically manifests during the rendering of web pages containing maliciously constructed data structures that trigger buffer overflows or heap corruption conditions within the browser's memory management systems.
The technical exploitation of this vulnerability occurs when Internet Explorer encounters malformed HTML or JavaScript content that causes memory allocation errors during page rendering processes. Attackers can craft web pages containing specially designed elements that, when loaded in the vulnerable browser versions, trigger memory corruption patterns leading to code execution privileges. This type of vulnerability falls under the ATT&CK framework's technique T1203: Exploitation for Client Execution, where adversaries leverage application vulnerabilities to execute malicious code on target systems. The memory corruption typically results from insufficient bounds checking in the browser's rendering engine, particularly affecting the JavaScript engine and HTML parser components.
The operational impact of this vulnerability extends beyond simple code execution to include significant denial of service conditions that can crash the browser entirely or cause system instability. When exploited successfully, the vulnerability allows attackers to gain arbitrary code execution privileges within the context of the user's browser session, potentially enabling further attacks such as credential theft, data exfiltration, or system compromise. The widespread adoption of Internet Explorer across enterprise environments amplified the risk, as organizations with numerous legacy systems running vulnerable IE versions became prime targets for exploitation. This vulnerability particularly affected corporate networks where older IE versions were still in use for compatibility reasons, creating extended attack surfaces.
Mitigation strategies for CVE-2014-0312 primarily involve immediate patch deployment through Microsoft's security updates, which address the underlying memory handling flaws in the browser's rendering engine. Organizations should implement browser hardening measures including disabling unnecessary features, implementing strict content security policies, and utilizing sandboxing technologies to limit potential damage from successful exploits. Network-level protections such as web application firewalls and intrusion detection systems can help detect and block malicious web content attempting to exploit this vulnerability. Additionally, user education regarding safe browsing practices and the importance of keeping software updated remains crucial, as many successful attacks exploit the delay between vulnerability disclosure and patch deployment. The vulnerability also highlights the importance of maintaining up-to-date security patches and implementing robust vulnerability management processes to prevent similar issues from compromising system security.