CVE-2024-7550 in Chrome
Summary
by MITRE • 08/07/2024
Type Confusion in V8 in Google Chrome prior to 127.0.6533.99 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
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Analysis
by VulDB Data Team • 03/15/2025
The vulnerability CVE-2024-7550 represents a critical type confusion issue within the V8 JavaScript engine used in Google Chrome browsers prior to version 127.0.6533.99. This flaw falls under the category of heap corruption vulnerabilities that can be exploited remotely through maliciously crafted web content. The vulnerability stems from improper type handling within the engine's memory management system, creating opportunities for attackers to manipulate object layouts and execute arbitrary code. Such type confusion vulnerabilities are particularly dangerous because they can lead to complete system compromise when successfully exploited.
The technical root cause of this vulnerability lies in the V8 engine's insufficient type checking mechanisms during object creation and manipulation operations. When processing crafted HTML content, the engine fails to properly validate type consistency across different object references, allowing attackers to manipulate memory layouts in ways that were not intended by the original code design. This type confusion creates a scenario where objects of one type are treated as another, potentially leading to memory corruption that can be leveraged for code execution. The vulnerability specifically impacts the engine's garbage collection and object allocation processes, where type information becomes inconsistent during runtime operations.
From an operational standpoint, this vulnerability poses a significant risk to end users who browse the internet without proper security updates. Attackers can craft malicious web pages that, when loaded in affected Chrome versions, trigger the type confusion flaw and execute arbitrary code on the victim's system. The remote exploitation capability means users do not need physical access to the target system, making this vulnerability particularly dangerous in phishing campaigns or drive-by download scenarios. The Chromium security severity rating of High indicates that this vulnerability has a substantial impact on user security and system integrity.
The exploitation of CVE-2024-7550 aligns with several ATT&CK techniques including T1059.007 for JavaScript execution and T1068 for local privilege escalation through memory corruption. The vulnerability also relates to CWE-476 which covers NULL pointer dereference, and CWE-121 which addresses stack-based buffer overflow conditions. Organizations should prioritize immediate patching of affected Chrome installations to mitigate this risk, as the vulnerability can be exploited without user interaction in many scenarios. Security teams should monitor for indicators of compromise related to suspicious web traffic patterns and ensure proper browser update management policies are in place. The remediation process should include verifying that all Chrome installations are updated to version 127.0.6533.99 or later, and implementing additional network security controls such as web application firewalls to detect and block malicious content.