CVE-2025-41765
Received
Received - Intake
Unauthorized File Upload via wwwupload.cgi Endpoint Enables Remote Exploitation
Publication date: 2026-03-09
Last updated on: 2026-03-11
Assigner: CERT VDE
Description
Description
Due to insufficient authorization enforcement, an unauthorized remote attacker can exploit the wwwupload.cgi endpoint to upload and apply arbitrary data. This includes, but is not limited to, contact images, HTTPS certificates, system backups for restoration, server peer configurations, and BACnet/SC server certificates and keys.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mbs-solutions | universal_bacnet_router_firmware | to 6.0.1.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-862 | The product does not perform an authorization check when an actor attempts to access a resource or perform an action. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability arises from insufficient authorization enforcement in the wwwupload.cgi endpoint. It allows an unauthorized remote attacker to upload and apply arbitrary data to the system.
- The attacker can upload various types of data including contact images, HTTPS certificates, system backups for restoration, server peer configurations, and BACnet/SC server certificates and keys.
How can this vulnerability impact me? :
The vulnerability can have severe impacts because it allows an attacker to modify critical system components without authorization.
- An attacker could upload malicious HTTPS certificates, potentially enabling man-in-the-middle attacks.
- Uploading system backups or server configurations could lead to system compromise or unauthorized restoration of altered states.
- Compromise of BACnet/SC server certificates and keys could affect industrial control systems security.
Overall, the vulnerability can lead to high integrity and availability impacts on the affected system.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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