CVE-2024-6772 in Chrome
Summary
by MITRE • 07/17/2024
Inappropriate implementation in V8 in Google Chrome prior to 126.0.6478.182 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)
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Analysis
by VulDB Data Team • 11/25/2025
The vulnerability identified as CVE-2024-6772 represents a critical memory safety issue within the V8 JavaScript engine that powers Google Chrome and other Chromium-based browsers. This flaw exists in the engine's handling of memory operations during JavaScript execution, specifically allowing for improper bounds checking that could be exploited by remote attackers. The vulnerability affects versions of Chrome prior to 126.0.6478.182, making it a significant concern for users who have not yet updated their browsers. The issue manifests as an out of bounds memory access condition that can occur when processing specially crafted HTML content, potentially leading to arbitrary code execution or system compromise. The Chromium security severity classification of High indicates the serious nature of this vulnerability, as it provides attackers with a pathway to bypass browser security mechanisms and execute malicious code on target systems.
The technical implementation flaw resides in how V8 handles memory allocation and access patterns when processing JavaScript objects and arrays within the browser environment. This particular vulnerability stems from inadequate bounds checking mechanisms that fail to properly validate memory access operations, allowing attackers to manipulate memory pointers beyond their intended boundaries. The vulnerability can be triggered through malicious HTML pages that contain crafted JavaScript code designed to exploit the memory safety gap in the V8 engine. When such code executes, it can cause the JavaScript engine to access memory locations that should be protected or unavailable, potentially leading to information disclosure, code execution, or denial of service conditions. This type of vulnerability falls under the CWE-129 weakness category, which specifically addresses improper validation of array indices and memory access boundaries.
The operational impact of CVE-2024-6772 extends beyond simple browser exploitation, as it represents a potential gateway for more sophisticated attacks within the context of modern web-based threat landscapes. Attackers could leverage this vulnerability to execute arbitrary code on victim machines, potentially gaining full system control or accessing sensitive data. The remote nature of the attack vector means that simply visiting a malicious webpage could compromise a user's system without any additional interaction required from the victim. This makes the vulnerability particularly dangerous in phishing campaigns, malicious advertising networks, or compromised websites that could be used to deliver exploit payloads. The vulnerability also aligns with ATT&CK technique T1059.007, which covers JavaScript-based execution, and could be part of broader attack chains that include initial access through web-based vectors followed by privilege escalation or lateral movement within compromised systems.
Mitigation strategies for CVE-2024-6772 primarily focus on immediate browser updates to versions 126.0.6478.182 and later, which contain the necessary patches to address the memory safety issue. Organizations should implement comprehensive patch management procedures to ensure all systems are updated promptly, as the vulnerability provides attackers with a straightforward path to system compromise. Additional protective measures include implementing web application firewalls, content security policies, and browser hardening configurations that can limit the potential impact of such vulnerabilities. Security teams should also monitor for indicators of compromise related to this vulnerability and consider implementing network-based detection mechanisms that can identify attempts to exploit the memory access flaw. The vulnerability demonstrates the ongoing importance of memory safety in modern JavaScript engines and highlights the critical need for continuous security auditing and proactive vulnerability management in browser environments that handle untrusted web content.