CVE-2026-93372 in Chrome
Summary
by MITRE • 09/18/2026
Buffer overflow in WebGL in Google Chrome on on Android prior to 153.0.8010.52 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
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Analysis
by VulDB Data Team • 09/18/2026
The vulnerability identified as CVE-2024-6974 represents a critical buffer overflow flaw within the WebGL implementation of Google Chrome on Android, specifically affecting versions prior to 153.0.8010.52. This security defect resides in the browser's graphics rendering engine, which is responsible for interpreting and executing JavaScript commands that interact with the GPU via the WebGL API. The core technical flaw involves improper handling of memory allocation or bounds checking during the processing of specific WebGL operations triggered by a maliciously crafted HTML page. When an attacker hosts such a page and lures a victim to visit it, the browser attempts to process the embedded graphics instructions without adequately validating input data sizes against allocated buffer limits. This discrepancy allows for writing beyond the boundaries of the intended memory region, leading to heap corruption or stack overflow conditions that can be exploited to overwrite adjacent memory structures with attacker-controlled data.
The operational impact of this vulnerability is severe due to its potential for remote code execution outside the browser's sandbox environment. Modern web browsers rely heavily on multi-process architecture and sandboxes to isolate untrusted content from the underlying operating system, thereby limiting the damage a compromised webpage can inflict. However, by exploiting this buffer overflow, an attacker can achieve arbitrary code execution within the context of the Chrome process or potentially escape the sandbox entirely if the vulnerability affects critical security boundaries. This capability allows for full compromise of the user's device, enabling data exfiltration, installation of persistent malware, or use of the compromised browser as a pivot point for further network attacks. The severity is classified as Critical by Chromium because it requires no special privileges from the victim other than visiting a malicious website, making it highly susceptible to drive-by download style attacks and cross-site scripting campaigns that leverage graphics rendering flaws.
From an industry standards perspective, this vulnerability aligns with CWE-120 Buffer Copy without Checking Size of Input Classic buffer overflow and potentially CWE-787 Out-of-bounds Write if the overwrite affects memory structures in a way that alters control flow or data integrity beyond simple overwriting. In terms of attack vectors, it maps to MITRE ATT&CK technique T1190 Exploit Public-Facing Application, where adversaries leverage vulnerabilities in internet-facing software like web browsers to gain initial access. The exploitation path typically involves crafting an HTML page with malicious JavaScript that triggers the specific WebGL function containing the flaw, often utilizing obfuscation techniques to evade static analysis and signature-based detection mechanisms employed by security tools.
Mitigation strategies primarily involve immediate patching of the Google Chrome browser on Android devices to version 153.0.8010.52 or later, which includes fixes for this memory safety issue. Organizations should enforce automatic update policies for all employee mobile devices and browsers to ensure timely application of security patches. For users unable to immediately upgrade, enabling strict content security policies where applicable and using browser extensions that restrict WebGL access can provide a layer of defense-in-depth by limiting the attack surface available to malicious scripts. Additionally, monitoring network traffic for unusual outbound connections from Chrome processes may help detect exploitation attempts in real-time, although proactive patching remains the most effective remediation measure against this class of memory corruption vulnerabilities.