CVE-2017-8496: 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 20 September 2026. Confidence: medium.

high priorityThe flaw allows remote code execution with a public exploit and very high EPSS, though it requires user interaction and is not in KEV.

What it is

Microsoft Edge on Windows 10 1607 and Windows Server 2016 improperly accesses objects in memory, causing a memory corruption condition. A remote attacker who convinces a user to view crafted content can run arbitrary code in that user's context. It matters because the affected browser is a common user-facing target and the flaw yields code execution at the user's privilege level.

Impact

An attacker gains arbitrary code execution in the context of the current user, which can lead to data theft, installation of malware, or further compromise of the host depending on user rights.

Attack surface

Reached over the network through crafted web content rendered by Microsoft Edge; the CVSS vector shows no privileges required but user interaction required, so the victim must be lured into visiting a malicious or compromised page.

Exploitation

A public exploit exists in Exploit-DB, and EPSS is high (about 0.51, 98.9th percentile), but the CVE is not listed in CISA KEV, so there is no confirmed in-the-wild exploitation record here.

What to do

• Apply the Microsoft security update referenced in the MSRC advisory for CVE-2017-8496 as the first action.
• Upgrade or migrate off Windows 10 1607 and Windows Server 2016 builds that no longer receive security fixes.
• Enforce browser hardening such as disabling unneeded plugins and restricting untrusted sites via policy where feasible.
• Block or filter known exploit and malicious content at the network and email gateway layers.
• Run users with least privilege to limit the impact of successful code execution.

Detection

• Monitor for Microsoft Edge crashes or abnormal process terminations that may indicate memory corruption attempts.
• Hunt for child processes spawned by Edge (for example script interpreters or command shells) that are unusual for normal browsing.
• Review proxy and DNS logs for access to known exploit-hosting or malicious domains tied to this CVE.
• Correlate endpoint telemetry for suspicious memory or code injection behavior in Edge processes.

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