CVE-2026-65802 Microsoft CVE debrief

Who should care

Users of Microsoft Edge for Android should be aware of this vulnerability and take steps to patch their installations. This vulnerability allows an unauthorized attacker to disclose information over a network, which could lead to potential security breaches. Therefore, it is crucial for users to prioritize patching to prevent potential information disclosure. Additionally, security teams and vulnerability management teams should also be aware of this vulnerability and review compensating controls for exposed systems while remediation is scheduled and verified. Monitoring and detection teams should check relevant monitoring, detection, and logs for exposed assets that need extra review. Asset inventory teams should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Operators and platform administrators should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. They should also plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. This requires coordination with security teams to ensure that patches are applied and that systems are properly configured to prevent exploitation. Overall, a coordinated effort is needed across various teams to address this vulnerability effectively and minimize potential risks. This includes reviewing and updating incident response plans, conducting thorough risk assessments, and implementing additional security measures as needed to protect against potential attacks. By taking these steps, organizations can reduce the likelihood of successful exploitation and minimize the impact of a potential security breach. Furthermore, it is essential to continuously monitor for suspicious network activity and review system logs to detect potential security incidents. This will enable organizations to respond promptly to potential security breaches and minimize their impact. In summary, a comprehensive approach is required to address this vulnerability, involving coordination across multiple teams, implementation of security measures, and continuous monitoring to prevent and detect

Technical summary

CVE-2026-65802 is an external control of file name or path vulnerability in Microsoft Edge for Android. This vulnerability allows an unauthorized attacker to disclose information over a network. The vulnerability has a CVSS score of 7.4 and is classified as HIGH severity.

Defensive priority

Microsoft Edge for Android users should prioritize patching to prevent potential information disclosure.

Recommended defensive actions

• Apply patches from Microsoft
• Inventory and update Microsoft Edge for Android
• Monitor for suspicious network activity

Evidence notes

The CVE-2026-65802 record indicates an external control of file name or path vulnerability in Microsoft Edge for Android, allowing unauthorized attackers to disclose information over a network. The CVSS score is 7.4, indicating a high severity. The NVD entry is currently Analyzed.

Official resources