CVE-2026-57981

43th percentile — higher than 43% of all known CVEs

A Use-After-Free vulnerability in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network. The issue stems from improper memory management when processing specific network data.

An attacker can remotely execute arbitrary code in the browser context, potentially leading to system compromise, data theft, or lateral movement within the organization's network.

Immediately update Microsoft Edge to the latest version available through the official update channel. Enforce a policy blocking unknown or untrusted websites until the patch is applied.