CVE-2015-2425 in Internet Explorer
Summary
by MITRE
Microsoft Internet Explorer 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-2015-2383 and CVE-2015-2384.
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Analysis
by VulDB Data Team • 04/22/2026
Microsoft Internet Explorer 11 contains a critical memory corruption vulnerability that enables remote attackers to execute arbitrary code or cause denial of service conditions through maliciously crafted web content. This vulnerability specifically affects the browser's handling of memory allocation and management during web page rendering processes, creating an exploitable condition that can be triggered by visiting a compromised website. The flaw represents a distinct vulnerability from other related issues such as CVE-2015-2383 and CVE-2015-2384, indicating separate code paths and underlying mechanisms within the browser's architecture. The memory corruption occurs when Internet Explorer processes certain web elements that lead to improper memory handling, potentially allowing attackers to overwrite critical memory locations with malicious code or cause the browser to crash through controlled memory manipulation. This vulnerability falls under the CWE-125 weakness category, which describes out-of-bounds read conditions where an application accesses memory outside the intended buffer boundaries. The attack vector requires a user to visit a malicious website that has been specifically crafted to exploit this memory corruption flaw, making social engineering and user interaction essential components of the attack chain.
The operational impact of this vulnerability extends beyond simple code execution to encompass potential system compromise and service disruption. When successfully exploited, the memory corruption can lead to arbitrary code execution with the privileges of the user running Internet Explorer, potentially allowing attackers to install malware, modify system files, or establish persistent access to affected systems. The denial of service component can result in browser crashes, application instability, and complete system unresponsiveness, impacting productivity and availability. This vulnerability affects organizations that continue to use Internet Explorer 11 as their primary browser, particularly those with legacy systems that cannot easily migrate to modern browser versions. The exploitability of this vulnerability is enhanced by the widespread use of Internet Explorer 11 in enterprise environments, making it a prime target for attackers seeking to compromise corporate networks through web-based attacks.
Security professionals should implement multiple layers of defense to mitigate the risks associated with this vulnerability, including immediate patch deployment through Microsoft's security updates and regular system maintenance protocols. The recommended mitigation strategy involves applying the relevant security patches released by Microsoft as soon as possible, while also implementing network-based protections such as web application firewalls and content filtering systems. Browser hardening techniques including disabling unnecessary features, implementing strict security zones, and configuring enhanced protection modes can significantly reduce the attack surface. Organizations should also consider implementing user education programs to raise awareness about phishing and social engineering attacks that might leverage this vulnerability. From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1203, which describes exploitation of remote services, and T1059, which covers command and script interpreter usage, as attackers may leverage the executed code to establish further footholds within compromised systems. Regular vulnerability assessments and penetration testing should be conducted to identify and remediate similar memory corruption issues that may exist in other browser components or related software applications.