CVE-2026-7339

Google · Chrome

A heap buffer overflow vulnerability in the WebRTC component of Google Chrome could allow an attacker to crash the application or execute arbitrary code.

Executive summary

A heap buffer overflow in Google Chrome’s WebRTC implementation creates a high-risk vector for remote code execution.

Vulnerability

The vulnerability is a heap buffer overflow within the WebRTC module. This flaw requires no authentication and can be exploited by an attacker through a malicious web page.

Business impact

This heap buffer overflow carries a CVSS score of 8.8, indicating a severe risk to corporate environments. Successful exploitation allows for memory corruption, which typically leads to arbitrary code execution, potentially resulting in full system compromise for the affected user.

Remediation

Immediate Action: Apply the latest security updates provided by Google to transition to Chrome version 147 or higher.

Proactive Monitoring: Monitor for anomalous spikes in browser memory usage or frequent unexpected application terminations.

Compensating Controls: Ensure that endpoint protection systems are configured to block execution from suspicious web-based sources.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Memory corruption vulnerabilities in core browser components like WebRTC are frequent targets for threat actors. It is essential that security teams verify that all instances of Chrome are updated to the patched version to prevent potential exploitation.