CVE-2023-4217: Moxa Eds-g503 Firmware

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability has been identified in PT-G503 Series versions prior to v5.2, where the session cookies attribute is not set properly in the affected application. The vulnerability may lead to security risks, potentially exposing user session data to unauthorized access and manipulation.

Affected products

• Moxa Eds-g503 Firmware: before 5.2 (fixed in 5.2)

Published 2023-11-02. Last modified 2026-06-17.