CVE-2025-41767

Signature bypass on update upload

Published Mar 9, 2026 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Description
A high-privileged remote attacker can fully compromise the device by abusing an update signature bypass vulnerability in the wwwupdate.cgi method in the web interface of UBR.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
First Time appeared Mbs-solutions
Mbs-solutions ubr-01 Mk Ii
Mbs-solutions ubr-02
Mbs-solutions ubr-lon
Mbs-solutions universal Bacnet Router Firmware
CPEs 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:-:*:*:*:*:*:*:*
cpe:2.3:o:mbs-solutions:universal_bacnet_router_firmware:*:*:*:*:*:*:*:*
Vendors & Products Mbs-solutions
Mbs-solutions ubr-01 Mk Ii
Mbs-solutions ubr-02
Mbs-solutions ubr-lon
Mbs-solutions universal Bacnet Router Firmware
Type Values Removed Values Added
First Time appeared Mbs
Mbs ubr-01 Mk Ii
Mbs ubr-02
Mbs ubr-lon
Vendors & Products Mbs
Mbs ubr-01 Mk Ii
Mbs ubr-02
Mbs ubr-lon
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A high-privileged remote attacker can fully compromise the device by abusing an update signature bypass vulnerability in the wwwupdate.cgi method in the web interface of UBR.
Title Signature bypass on update upload
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses
  • CWE-347

    Improper Verification of Cryptographic Signature

Sources

Status
PUBLISHED
Assigner
CERTVDE
Published
Updated
Mar 9, 2026, 6:19 PM
Reserved
Apr 16, 2025, 11:18 AM
Status
Analyzed
Published
Mar 9, 2026, 9:16 AM
Modified
Jun 17, 2026, 9:23 AM