CVE-2019-25237: Guangzhou V-Solution Electronic Technology Co., Ltd Sol Gpon/epon Olt Platform

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

V-SOL GPON/EPON OLT Platform v2.03 contains a privilege escalation vulnerability that allows normal users to gain administrative access by manipulating the user role parameter. Attackers can send a crafted HTTP POST request to the user management endpoint with 'user_role_mod' set to integer value '1' to elevate their privileges.

Affected products

• Guangzhou V-Solution Electronic Technology Co., Ltd Sol Gpon/epon Olt Platform: version 2.03 only

Published 2025-12-24. Last modified 2026-06-17.