Vulnerability · Published Mar 9, 2026 · Assigned by CERTVDE

CVE-2025-41757Arbitrary Write with ubr-restore

High 8.8

In plain English

A high-severity path traversal in UBR-01 Mk II from MBS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 50.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
MBS UBR-01 Mk II 0.0.0 – before 6.0.1.0
MBS UBR-02 0.0.0 – before 6.0.1.0
MBS UBR-LON 0.0.0 – before 6.0.1.0

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References