External risk intelligence

ANGLE Buffer Overflow in Chrome for Android Allows Code Execution

CVE advisorySeverity: CRITICAL (CVSS 9.6)

CVE-2026-102331

This vulnerability affects a client-side web browser application. Exploitation requires a user to navigate to a crafted HTML page, meaning the attack surface is not a public-facing service, appliance, or infrastructure component, but rather a client-side execution environment.

Buffer Overflow

Google Chrome

before 154.0.8037.92

Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in ANGLE, a component used in Google Chrome on Android. This buffer overflow flaw could allow a remote attacker to execute arbitrary code outside of the browser's sandbox through a malicious webpage. The primary concern is confirming whether this client-side vulnerability is relevant to our environment, given its reliance on user interaction with a crafted web page.

Code execution risk in web browsing.
User interaction needed for exploitation.
Confirm relevance to client-side systems.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by luring a user to a malicious webpage. When the user visits this page, a flaw in the ANGLE component of the Chrome browser on Android could be triggered, potentially allowing the attacker to execute their own code on the device.

Requires user interaction with a malicious page.
Triggered by viewing crafted HTML content.
Risk of arbitrary code execution.

Live Threat

Current exploitation, exposure, and threat context

A buffer overflow in ANGLE, a component of Google Chrome on Android, could allow a remote attacker to execute arbitrary code outside the sandbox when a user visits a crafted HTML page. This could lead to a compromise of the user's device.

Arbitrary code execution in user's browser.
Via crafted HTML page visited by user.
Potential full device compromise.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability impacts ANGLE, a component of Google Chrome on Android, potentially allowing remote code execution. Ownership likely falls to teams managing Android device fleets and Chrome browser deployments, with initial steps focusing on identifying affected devices, assessing business criticality, and confirming the accountable owner for remediation planning.

Own browser deployment and Android devices.
Verify Chrome browser reachability and criticality.
Plan and coordinate user-safe updates.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is the ANGLE component used for in Chrome on Android?

ANGLE acts as a translation layer that converts web-based graphics calls into instructions the Android device's hardware understands. It allows Chrome to render complex 3D graphics and animations smoothly by interacting directly with the underlying graphics drivers.

What does a buffer overflow mean in the context of CVE-2026-102331?

A buffer overflow occurs when a program writes more data to a memory storage area than it can hold, causing it to spill over into adjacent memory. In this vulnerability, classified as CWE-122 (Heap-based Buffer Overflow), an attacker uses this memory error to overwrite critical data and potentially run their own unauthorized code.

How is this Chrome vulnerability triggered?

This flaw is triggered when a user navigates to a specifically crafted HTML page designed to exploit the memory error. It does not trigger simply by having the browser installed; it requires the user to interact with malicious web content that forces the browser to process malformed graphics data.

Do I need to worry about this vulnerability on internal servers?

According to Halo Surface Signal, this vulnerability affects a client-side browser, not server-side infrastructure. Because exploitation requires a user to visit a malicious site, your concern should be focused on Android devices used by employees rather than internal backend servers.

When should I update Chrome to address this security flaw?

You should prioritize updating Chrome on all Android devices to version 154.0.8037.92 or later as soon as possible. Since this vulnerability allows for code execution outside the browser sandbox, applying the vendor-provided update is the primary way to eliminate the risk.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.