CVE-2023-5035: Moxa Eds-g503 Firmware

Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability has been identified in PT-G503 Series firmware versions prior to v5.2, where the Secure attribute for sensitive cookies in HTTPS sessions is not set, which could cause the cookie to be transmitted in plaintext over an HTTP session. 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.