CVE-2025-41755

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.
References
Link Resource
https://www.mbs-solutions.de/mbs-2025-0001 Vendor Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:mbs-solutions:universal_bacnet_router_firmware:*:*:*:*:*:*:*:*
OR cpe:2.3:h:mbs-solutions:ubr-01_mk_ii:-:*:*:*:*:*:*:*
cpe:2.3:h:mbs-solutions:ubr-02:-:*:*:*:*:*:*:*
cpe:2.3:h:mbs-solutions:ubr-lon:-:*:*:*:*:*:*:*

History

11 Mar 2026, 18:26

Type Values Removed Values Added
CPE cpe:2.3:h:mbs-solutions:ubr-02:-:*:*:*:*:*:*:*
cpe:2.3:h:mbs-solutions:ubr-01_mk_ii:-:*:*:*:*:*:*:*
cpe:2.3:h:mbs-solutions:ubr-lon:-:*:*:*:*:*:*:*
cpe:2.3:o:mbs-solutions:universal_bacnet_router_firmware:*:*:*:*:*:*:*:*
References () https://www.mbs-solutions.de/mbs-2025-0001 - () https://www.mbs-solutions.de/mbs-2025-0001 - Vendor Advisory
Summary
  • (es) Un atacante remoto con pocos privilegios puede explotar el método ubr-logread en wwwubr.cgi para leer archivos arbitrarios en el sistema. El endpoint acepta un parámetro que especifica el archivo de registro a abrir (por ejemplo, /tmp/weblog{algún_número}), pero este parámetro no se valida correctamente, lo que permite a un atacante modificarlo para hacer referencia a cualquier archivo y recuperar su contenido.
First Time Mbs-solutions
Mbs-solutions ubr-lon
Mbs-solutions ubr-01 Mk Ii
Mbs-solutions ubr-02
Mbs-solutions universal Bacnet Router Firmware

09 Mar 2026, 09:15

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-09 09:15

Updated : 2026-03-11 18:26


NVD link : CVE-2025-41755

Mitre link : CVE-2025-41755

CVE.ORG link : CVE-2025-41755


JSON object : View

Products Affected

mbs-solutions

  • ubr-lon
  • ubr-02
  • universal_bacnet_router_firmware
  • ubr-01_mk_ii
CWE
CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')