CVE-2025-10659

MegaSys Enterprises Telenium Online Web Application OS Command Injection

Published Sep 30, 2025 CVSS 4.0 · 9.3 Critical EPSS 1.2% KEV · Not listed
Description
The Telenium Online Web Application is vulnerable due to a PHP endpoint accessible to unauthenticated network users that improperly handles user-supplied input. This vulnerability occurs due to the insecure termination of a regular expression check within the endpoint. Because the input is not correctly validated or sanitized, an unauthenticated attacker can inject arbitrary operating system commands through a crafted HTTP request, leading to remote code execution on the server in the context of the web application service account.

Remediation

Vendor Solution

Megasys Enterprises has provided a fix for this vulnerability. Users should access the Megasys support page https://support.portal.megasys.com/  to get instructions on applying the fix.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Megasys
Megasys telenium Online Web Application
Vendors & Products Megasys
Megasys telenium Online Web Application
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The Telenium Online Web Application is vulnerable due to a PHP endpoint accessible to unauthenticated network users that improperly handles user-supplied input. This vulnerability occurs due to the insecure termination of a regular expression check within the endpoint. Because the input is not correctly validated or sanitized, an unauthenticated attacker can inject arbitrary operating system commands through a crafted HTTP request, leading to remote code execution on the server in the context of the web application service account.
Title MegaSys Enterprises Telenium Online Web Application OS Command Injection
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Sep 30, 2025, 8:41 PM
Reserved
Sep 17, 2025, 10:14 PM
Status
Deferred
Published
Sep 30, 2025, 8:15 PM
Modified
Jun 17, 2026, 8:28 AM