CVE-2019-25239: Guangzhou V-Solution Electronic Technology Gpon/epon Olt Platform

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

V-SOL GPON/EPON OLT Platform 2.03 contains an unauthenticated information disclosure vulnerability that allows attackers to download configuration files via direct object reference. Attackers can retrieve sensitive configuration data by sending HTTP GET requests to the usrcfg.conf endpoint, potentially enabling authentication bypass and system access.

Affected products

• Guangzhou V-Solution Electronic Technology Gpon/epon Olt Platform: version V2.03.62R_IPv6 only; version V2.03.54R only; version V2.03.52R only; version V2.03.49 only; version V2.03.47 only; version V2.03.40 only; …

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