Remote File Deletion in UGW via Insufficient Input Validation

Publication date: 2026-06-03

Last updated on: 2026-07-03

Assigner: CERT VDE

Description

The ugw-delete-file method allows a remote attacker with user privileges to delete arbitrary local files due to insufficient validation of user-controlled input.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-03

Last Modified

2026-07-03

Generated

2026-07-14

AI Q&A

2026-06-03

EPSS Evaluated

2026-07-12

NVD

CVE-2026-35077

EUVD

EUVD-2026-34073

Affected Vendors & Products

Vendor	Product	Version / Range
mbs-solutions	universal_gateway_firmware	to 6_00_07 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-73	The product allows user input to control or influence paths or file names that are used in filesystem operations.

Attack-Flow Graph

Executive Summary

This vulnerability involves the ugw-delete-file method, which allows a remote attacker who has user privileges to delete arbitrary local files. The issue arises because the method does not properly validate user-controlled input, enabling the attacker to specify files to delete that they should not have access to.

Impact Analysis

The vulnerability can lead to unauthorized deletion of local files by an attacker with user privileges. This can result in loss of important data, disruption of services, and potential system instability depending on which files are deleted.

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