CVE-2025-41756 json
Arbitrary Write with ubr-editfile
published 2026-03-09 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-208358
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
A low-privileged remote attacker can exploit the ubr-editfile method in wwwubr.cgi, an undocumented and unused API endpoint to write arbitrary files on the system.
Patch / fix
- MBS UBR-01 Mk II 6.0.1.0
- MBS UBR-02 6.0.1.0
- MBS UBR-LON 6.0.1.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
Affected products
- MBS UBR-01 Mk II
- MBS UBR-02
- MBS UBR-LON
Classification
- Weakness
-
- CWE-1242 Inclusion of Undocumented Features or Chicken Bits
References
-
mbs-solutions.de
/mbs-2025-0001
vendor-advisory
Sources
- CVE List CVE-2025-41756
- NVD CVE-2025-41756
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