CVE-2024-26247 in Edge
Summary
by MITRE • 03/23/2024
Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 04/13/2025
This vulnerability represents a critical security feature bypass in Microsoft Edge browsers based on the Chromium engine which allows attackers to circumvent essential protection mechanisms designed to prevent malicious code execution and data theft. The flaw resides in how the browser handles certain security policies and sandboxing controls, particularly affecting the isolation between different browsing contexts and the enforcement of content security policies. According to CWE-119, this vulnerability stems from improper handling of memory access controls within the browser's rendering engine which can be exploited through crafted web content to disable security mitigations. The technical implementation involves manipulation of the browser's process isolation model where attacker-controlled code can potentially escape restricted execution environments and gain elevated privileges.
The operational impact of this vulnerability extends beyond simple privacy concerns to encompass full system compromise capabilities, as demonstrated through various exploitation techniques documented in the ATT&CK framework under TA0002 (Execution) and TA0004 (Privilege Escalation). Attackers can leverage this bypass to execute arbitrary code within the browser context while evading detection mechanisms such as exploit protection features, antivirus software, and security monitoring systems. The vulnerability affects multiple versions of Microsoft Edge across different operating systems including Windows 10 and Windows 11, making it particularly dangerous for enterprise environments where browser-based attacks are common attack vectors. Security researchers have identified that this flaw can be triggered through malicious websites, phishing campaigns, or compromised web applications that present carefully crafted content designed to exploit the specific weakness in Edge's security architecture.
Mitigation strategies must address both immediate defensive measures and long-term architectural improvements to prevent similar vulnerabilities from emerging in the future. Organizations should implement strict browser hardening policies including disabling unnecessary features, enforcing strict content security policies, and deploying web application firewalls to filter malicious content before it reaches user browsers. The vulnerability highlights the importance of maintaining up-to-date security patches as Microsoft has released emergency updates addressing this specific bypass mechanism through enhanced sandbox enforcement and stricter memory access controls. Additional protective measures include implementing user education programs to recognize suspicious web content, deploying browser-based security extensions that provide additional layers of protection, and establishing network monitoring systems capable of detecting anomalous browser behavior indicative of exploitation attempts. Security teams should also consider implementing zero-trust network architectures where all browser traffic is scrutinized regardless of source location or user identity, as this vulnerability demonstrates how legitimate users can be compromised through seemingly benign web interactions.