CVE-2025-41757
Arbitrary Write with ubr-restore
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
A low-privileged remote attacker can abuse the backup restore functionality of UBR (ubr-restore) which runs with elevated privileges and does not validate the contents of the backup archive to create or overwrite arbitrary files anywhere on the system.
| CWE | CWE-22 |
| Vendor | mbs |
| Product | ubr-01 mk ii |
| Published | Mar 9, 2026 |
| Last Updated | Mar 9, 2026 |
Stay Ahead of the Next One
Get instant alerts for mbs ubr-01 mk ii
Be the first to know when new high vulnerabilities affecting mbs ubr-01 mk ii are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
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