CVE-2025-41758
Arbitrary Write with wwwupload.cgi
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| 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:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
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