CVE-2026-4464 in Chrome
Summary
by MITRE • 03/20/2026
Integer overflow in ANGLE in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 03/25/2026
The vulnerability identified as CVE-2026-4464 represents a critical integer overflow condition within the ANGLE graphics library component of Google Chrome browsers. ANGLE serves as a DirectX to OpenGL translation layer that enables Chrome to render graphics content on various operating systems including Windows, macOS, and Linux. This specific flaw occurs in the version of ANGLE bundled with Chrome prior to 146.0.7680.153, creating a potential pathway for remote code execution through maliciously crafted web content. The vulnerability stems from improper handling of integer arithmetic operations that can lead to unexpected behavior when processing large numerical values within graphics rendering contexts. The medium severity classification from Chromium security team reflects the complexity required to exploit this weakness successfully, though the potential impact remains significant given the privileged execution context of browser graphics rendering processes.
The technical implementation of this integer overflow vulnerability manifests when ANGLE processes certain graphics commands that involve large integer values during buffer allocation or memory management operations. When these operations exceed the maximum representable value for the integer data type being used, the overflow condition causes unexpected behavior in memory allocation routines or buffer size calculations. This flaw particularly affects scenarios where the graphics library needs to allocate memory buffers for textures, vertex data, or other graphical elements that may be specified through web content. The overflow can cause heap corruption when the system attempts to allocate memory based on the erroneous calculated values, potentially allowing an attacker to manipulate memory layout and execute arbitrary code within the browser process context.
The operational impact of this vulnerability extends beyond simple browser compromise, as it represents a potential gateway for more sophisticated attacks within the browser sandbox environment. When successfully exploited, the heap corruption can lead to privilege escalation or code execution that bypasses standard browser security boundaries. Attackers could leverage this vulnerability by hosting malicious web pages that trigger the vulnerable ANGLE code path through WebGL or other graphics APIs exposed to web content. The exploitation requires careful crafting of HTML content that specifically triggers the integer overflow condition within the graphics rendering pipeline, making it less trivial than some other browser vulnerabilities but still presenting a real security risk to users running affected Chrome versions. The vulnerability affects all platforms where Chrome uses ANGLE for graphics rendering, including Windows, macOS, and Linux systems.
Mitigation strategies for CVE-2026-4464 primarily focus on immediate browser updates to versions 146.0.7680.153 or later where the integer overflow has been addressed through proper bounds checking and overflow protection mechanisms. System administrators should prioritize deployment of these updates across enterprise environments, particularly in scenarios where users may encounter untrusted web content. Additional defensive measures include implementing content security policies that restrict access to potentially dangerous graphics APIs, enabling sandboxing features within the browser, and monitoring for suspicious network traffic patterns that may indicate exploitation attempts. The vulnerability aligns with CWE-190, which specifically addresses integer overflow conditions, and may map to ATT&CK techniques involving privilege escalation and code injection through browser-based attack vectors. Organizations should also consider deploying web application firewalls and network-based intrusion detection systems to monitor for exploitation attempts targeting this specific vulnerability class, as the attack surface remains relevant for threat actors seeking to leverage browser rendering engine flaws.