CVE-2025-41755
Arbitrary Read with ubr-logread
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
A low-privileged remote attacker can exploit the ubr-logread method in wwwubr.cgi to read arbitrary files on the system. The endpoint accepts a parameter specifying the log file to open (e.g., /tmp/weblog{some_number}), but this parameter is not properly validated, allowing an attacker to modify it to reference any file and retrieve its contents.
| CWE | CWE-22 |
| Vendor | mbs |
| Product | ubr-01 mk ii |
| Published | Mar 9, 2026 |
| Last Updated | Mar 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
MBS / UBR-01 Mk II
0.0.0 < 6.0.1.0
MBS / UBR-02
0.0.0 < 6.0.1.0
MBS / UBR-LON
0.0.0 < 6.0.1.0
Credits
Adrien Rey from Cyber Defense Campus Zurich Daniel Hulliger from Armasuisse