CVE-2016-3222: Microsoft Edge memory corruption allows remote code execution

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 19 September 2026. Confidence: medium.

high priorityCVSS 8.8 with network reachability and high EPSS, but exploitation requires user interaction and the flaw is dated with a vendor patch available.

What it is

Microsoft Edge contains a memory corruption flaw (CWE-119) that a remote attacker can trigger through a crafted web site, leading to arbitrary code execution or denial of service. The vulnerability is reachable over the network with no privileges required, though the victim must interact with the page. It matters because successful exploitation can compromise the browser process and potentially the host.

Impact

An attacker can execute arbitrary code in the context of the Edge browser or crash it, causing denial of service. Code execution could allow further compromise of the user's session and data.

Attack surface

Reached remotely over the network via a crafted web site rendered by Microsoft Edge. No authentication is required, but user interaction (visiting the page) is needed per the CVSS vector UI:R.

Exploitation

Not listed in CISA KEV, but EPSS is high (0.56767, 99th percentile) and public references include an Exploit-DB entry and a ZDI advisory, indicating public exploit information exists.

What to do

• Apply the Microsoft security update MS16-068 for Microsoft Edge.
• Keep Edge and the underlying Windows platform fully patched.
• Restrict or monitor browsing to untrusted sites and enforce SmartScreen/Exploit Protection where feasible.
• Consider disabling or limiting unnecessary browser features and add-ons that expand the attack surface.

Detection

• Monitor for Edge process crashes and abnormal memory corruption indicators in endpoint telemetry.
• Hunt for suspicious child processes spawned by MicrosoftEdge.exe, especially script interpreters or command shells.
• Review proxy and DNS logs for access to known exploit-hosting or malvertising domains.
• Correlate Exploit-DB/ZDI reference activity with endpoint alerts for Edge exploitation attempts.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.