CVE-2019-25237 - CVE House
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Status published High CVE-2019-25237

V-SOL GPON/EPON OLT Platform 2.03 Privilege Escalation via User Role Parameter

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • LiquidWorm as Gjoko Krstic of Zero Science Lab

Affected Vendor

Guangzhou V-SOLUTION Electronic Technology Co., Ltd.

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Affected Software

SOL GPON/EPON OLT Platform
Vulnerable Versions:
2.03

Timeline

Official Publish: December 24th, 2025
Last Modified: December 24th, 2025
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)