CVE-2026-57974 in Edge
Summary
by MITRE • 07/04/2026
Integer overflow or wraparound 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
This vulnerability represents a critical integer overflow condition that exists within the chromium-based rendering engine of microsoft edge browser. The flaw occurs when the application processes certain input data that causes integer arithmetic operations to exceed their maximum representable values, resulting in wraparound behavior where the value resets to zero or negative numbers. This type of vulnerability falls under the common weakness enumeration category CWE-190, which specifically addresses integer overflow conditions. The security implications are severe as attackers can manipulate input parameters to trigger this overflow during normal browser operations such as parsing web content, handling multimedia files, or processing network requests.
The technical exploitation of this vulnerability requires an attacker to craft malicious content that when processed by edge browser triggers the specific integer arithmetic sequence leading to the wraparound condition. This typically involves sending specially crafted data through web pages, javascript execution, or network protocols that cause the browser's memory management or resource allocation routines to behave unpredictably. When the integer overflow occurs within memory allocation functions, it can lead to buffer overflows, heap corruption, or other memory safety violations that provide attackers with opportunities to inject and execute arbitrary code. The attack surface is particularly concerning as edge browsers are frequently used for web browsing activities where users encounter untrusted content from various sources.
The operational impact of this vulnerability extends beyond simple code execution capabilities as it represents a complete compromise of the browser's security model. Once successfully exploited, attackers can bypass standard security boundaries and gain full control over the user's browsing session, potentially leading to data theft, credential harvesting, or further network infiltration. The vulnerability affects all versions of microsoft edge that are based on chromium engine, making it widespread across deployed browser environments. This type of remote code execution flaw is particularly dangerous in enterprise environments where edge browsers are commonly used for accessing internal resources and corporate applications.
Mitigation strategies should focus on immediate patching and updating to the latest stable versions of microsoft edge where the integer overflow has been addressed through proper input validation and arithmetic boundary checks. Organizations should implement network monitoring solutions to detect suspicious traffic patterns that might indicate exploitation attempts, while also applying web application firewalls and content filtering measures to prevent access to known malicious domains. The recommended defense in depth approach includes disabling unnecessary browser features, implementing strict content security policies, and maintaining regular security updates across all browser installations. From an attacker perspective this vulnerability aligns with techniques described in the attack pattern taxonomy under the category of code injection attacks and can be classified as a remote exploitation vector that leverages memory corruption vulnerabilities for privilege escalation and system compromise.