CVE-2025-41758
Received Received - Intake
Arbitrary File Write via Path Traversal in wwupload.cgi Enables Full Compromise

Publication date: 2026-03-09

Last updated on: 2026-03-11

Assigner: CERT VDE

Description
A low-privileged remote attacker can exploit an arbitrary file write vulnerability in the wwupload.cgi endpoint. Due to path traversal this can lead to overwriting arbitrary files on the device and achieving a full system compromise.
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Meta Information
Published
2026-03-09
Last Modified
2026-03-11
Generated
2026-06-16
AI Q&A
2026-03-09
EPSS Evaluated
2026-06-15
NVD
CVE-2025-41758
EUVD
EUVD-2025-208362
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
mbs-solutions universal_bacnet_router_firmware to 6.0.1.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
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Executive Summary

This vulnerability involves an arbitrary file write issue in the wwupload.cgi endpoint. A low-privileged remote attacker can exploit path traversal to overwrite arbitrary files on the affected device.

By leveraging this flaw, the attacker can gain full system compromise.

Impact Analysis

The vulnerability can lead to a full system compromise, allowing an attacker to overwrite critical files on the device.

This can result in unauthorized control over the system, potentially leading to data loss, service disruption, or further exploitation.

Compliance Impact

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Detection Guidance

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