CVE-2026-57975 in Edge
Summary
by MITRE • 07/04/2026
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
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Analysis
by VulDB Data Team • 07/04/2026
Type confusion vulnerabilities represent a critical class of software defects that occur when a program incorrectly handles data types during runtime operations, often leading to memory corruption and potential arbitrary code execution. In the context of Microsoft Edge Chromium-based browser, this specific vulnerability manifests when the rendering engine encounters resource access patterns that trigger incompatible type handling scenarios. The flaw typically arises in JavaScript engine components where objects with different memory layouts are improperly managed, creating conditions where attacker-controlled data can manipulate object type information. This type confusion issue specifically impacts the browser's ability to properly validate and handle various data structures during web page processing, particularly when dealing with complex object interactions and memory management operations.
The technical exploitation of this vulnerability requires an attacker to craft malicious web content that can trigger specific memory access patterns within Edge's JavaScript engine. When the browser processes crafted input, it may inadvertently perform operations on objects using incorrect type assumptions, leading to memory corruption that can be leveraged for code execution. This attack vector typically involves manipulating object properties or method calls in ways that cause the engine to misinterpret data types during runtime operations. The vulnerability is particularly dangerous because it can be triggered through standard web browsing activities, making it accessible to attackers who simply need to convince victims to visit compromised websites.
Operational impact of this vulnerability extends beyond simple privilege escalation scenarios as it represents a remote code execution threat that can be exploited without user interaction in many cases. The affected Microsoft Edge browser users face significant risk when visiting malicious websites or encountering compromised web content, as the exploitation can occur entirely within the browser environment without requiring additional attack vectors. This vulnerability can be particularly problematic in enterprise environments where browser-based attacks often serve as initial compromise points for more extensive security breaches. The remote execution capability means that attackers can potentially deploy malware, establish persistent backdoors, or perform data exfiltration directly from affected systems.
Mitigation strategies for this type confusion vulnerability should include immediate deployment of Microsoft security updates and patches that address the specific memory handling flaws in Edge's JavaScript engine. Organizations should implement browser hardening measures such as enabling sandboxing features, restricting unnecessary browser capabilities, and deploying web application firewalls to filter potentially malicious content. Additionally, security teams should monitor for exploitation attempts through network traffic analysis and endpoint detection systems that can identify unusual patterns associated with type confusion attacks. The mitigation approach aligns with cybersecurity frameworks that emphasize defense in depth, combining patch management with runtime protection measures to reduce the attack surface and prevent successful exploitation attempts. Organizations should also consider implementing user education programs to raise awareness about suspicious web content and the importance of keeping browser software up to date.