CVE-2026-7339 Google CVE debrief

Who should care

Users of Google Chrome prior to version 147.0.7727.138 should update to the latest version to mitigate this vulnerability. Additionally, developers who use WebRTC in their applications should be aware of this vulnerability and take necessary precautions. This includes reviewing and updating any applications that use WebRTC to ensure they are not vulnerable.

Technical summary

The vulnerability is caused by a heap buffer overflow in WebRTC, which can be exploited by a remote attacker via a crafted HTML page. This could potentially lead to heap corruption. The vulnerability has a CVSS score of 8.8 and is rated as HIGH severity. It affects Google Chrome prior to version 147.0.7727.138. Users and developers should take necessary precautions to mitigate this vulnerability. The vulnerability is particularly concerning for users of Google Chrome and developers who use WebRTC in their applications, as it could allow for potential exploitation of heap corruption. To address this vulnerability, it is essential to understand the technical details and take appropriate measures to prevent exploitation.

Defensive priority

High priority should be given to updating Google Chrome to version 147.0.7727.138 or later. Reviewing and updating any applications that use WebRTC is also crucial. Monitoring for any suspicious activity related to this vulnerability is recommended. Implementing compensating controls for exposed systems while remediation is scheduled and verified can help mitigate potential risks. Tracking exceptions, retesting remediated assets, and closing the item only after evidence is documented are also important steps. Asset inventory and source tracking can help in managing the vulnerability effectively. Regularly reviewing relevant monitoring, detection, and logs for exposed assets that need extra review is advised. Rolling back change windows and verifying the effectiveness of the remediation are critical in ensuring the vulnerability is properly managed. Confirming whether affected product deployments exist in managed environments and assigning an owner for follow-up is essential in the remediation process. Planning vendor-supported updates or mitigations through normal change control where exposure is confirmed helps in efficient remediation. Checking for any unauthorized changes and verifying the integrity of the systems is also recommended. This multi-faceted approach ensures comprehensive management of the vulnerability and minimizes potential risks. The defensive priority is High due to the potential impact of the vulnerability and the importance of timely remediation. Given the severity and potential impact, it is crucial to prioritize the remediation efforts and allocate necessary resources to address this vulnerability effectively. The recommended actions are designed to provide a comprehensive approach to managing the vulnerability and mitigating potential risks. By following these steps, organizations can ensure they are taking a proactive and defensive approach to addressing the vulnerability and protecting their systems and data. The actions recommended are based on best practices for vulnerability management and are designed to help organizations minimize potential risks and ensure the security of their systems and data. The vulnerability requires a high

Recommended defensive actions

• Update Google Chrome to version 147.0.7727.138 or later
• Review and update any applications that use WebRTC to ensure they are not vulnerable
• Monitor for any suspicious activity related to this vulnerability
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record was published on 2026-04-28T23:16:21.483Z and was last modified on 2026-07-24T08:10:00.150Z. The NVD entry is currently Analyzed. This information is based on the NVD entry and the CVE record. The vulnerability has been identified in Google Chrome prior to version 147.0.7727.138. Users should verify their versions and update as necessary. The CVE record and NVD entry provide further details on this vulnerability.

Official resources