CVE-2019-25239

HIGH

V-SOL GPON/EPON OLT Platform 2.03 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-25239. PoCs published by LiquidWorm.

AI-analyzed exploit summary This exploit demonstrates an unauthenticated configuration download vulnerability in V-SOL GPON/EPON OLT Platform. By directly referencing the usrcfg.conf file via HTTP GET, an attacker can disclose sensitive information, potentially leading to authentication bypass or privilege escalation.

Description

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.

Exploits (1)

exploitdb WORKING POC
by LiquidWorm · textwebappshardware
https://www.exploit-db.com/exploits/47433

This exploit demonstrates an unauthenticated configuration download vulnerability in V-SOL GPON/EPON OLT Platform. By directly referencing the usrcfg.conf file via HTTP GET, an attacker can disclose sensitive information, potentially leading to authentication bypass or privilege escalation.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: V-SOL GPON/EPON OLT Platform (versions V2.03.62R_IPv6 and below, including V1.8.6 and V1.4)
No auth needed
Prerequisites: Network access to the target device · Knowledge of the target IP address
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Various Sources product
https://www.vsolcn.com
Third Party Advisory third-party-advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5534.php
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/47433

Scores

CVSS v3 7.5
EPSS 0.0036
EPSS Percentile 27.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-552
Status published
Products (10)
Guangzhou V-SOLUTION Electronic Technology/GPON/EPON OLT Platform V1.4
Guangzhou V-SOLUTION Electronic Technology/GPON/EPON OLT Platform V1.8.6
Guangzhou V-SOLUTION Electronic Technology/GPON/EPON OLT Platform V2.03.24
Guangzhou V-SOLUTION Electronic Technology/GPON/EPON OLT Platform V2.03.26
Guangzhou V-SOLUTION Electronic Technology/GPON/EPON OLT Platform V2.03.40
Guangzhou V-SOLUTION Electronic Technology/GPON/EPON OLT Platform V2.03.47
Guangzhou V-SOLUTION Electronic Technology/GPON/EPON OLT Platform V2.03.49
Guangzhou V-SOLUTION Electronic Technology/GPON/EPON OLT Platform V2.03.52R
Guangzhou V-SOLUTION Electronic Technology/GPON/EPON OLT Platform V2.03.54R
Guangzhou V-SOLUTION Electronic Technology/GPON/EPON OLT Platform V2.03.62R_IPv6
Published Dec 24, 2025
Tracked Since Feb 18, 2026