8.7
HIGH CVSS 4.0
CVE-2019-25239
V-SOL GPON/EPON OLT Platform 2.03 Unauthenticated Configuration Download
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.

INFO

Published Date :

Dec. 24, 2025, 8:15 p.m.

Last Modified :

Dec. 24, 2025, 9:16 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2019-25239 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH MITRE-CVE
CVSS 4.0 HIGH 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 HIGH [email protected]
Solution
Restrict access to configuration files and update the platform to prevent unauthorized disclosure.
  • Restrict access to sensitive configuration files.
  • Apply vendor updates to the OLT platform.
  • Monitor for unauthorized access attempts.
  • Review system access logs regularly.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-25239.

URL Resource
https://www.exploit-db.com/exploits/47433
https://www.vsolcn.com
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5534.php
https://www.exploit-db.com/exploits/47433
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5534.php
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-25239 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-25239 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-25239 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-25239 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Dec. 24, 2025

    Action Type Old Value New Value
    Added Reference https://www.exploit-db.com/exploits/47433
    Added Reference https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5534.php
  • New CVE Received by [email protected]

    Dec. 24, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Added CWE CWE-552
    Added Reference https://www.exploit-db.com/exploits/47433
    Added Reference https://www.vsolcn.com
    Added Reference https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5534.php
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.7
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact