CVE-2023-38817: Echo Anti Cheat Tool

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue in Inspect Element Ltd Echo.ac v.5.2.1.0 allows a local attacker to gain privileges via a crafted command to the echo_driver.sys component. NOTE: the vendor's position is that the reported ability for user-mode applications to execute code as NT AUTHORITY\SYSTEM was "deactivated by Microsoft itself."

Affected products

• Echo Anti Cheat Tool: before 5.2.1.0 (fixed in 5.2.1.0)

Published 2023-10-11. Last modified 2026-06-17.