MBS UBR-01 Mk II/UBR-02/UBR-LON prior 6.0.1.0 wwwupdate.cgi authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in MBS UBR-01 Mk II, UBR-02 and UBR-LON and classified as critical. The impacted element is an unknown function of the file wwwupdate.cgi. This manipulation causes authorization. This vulnerability is tracked as CVE-2025-41764. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in MBS UBR-01 Mk II, UBR-02 and UBR-LON and classified as critical. Affected by this vulnerability is an unknown part of the file wwwupdate.cgi. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect integrity, and availability. The summary by CVE is:

Due to insufficient authorization enforcement, an unauthorized remote attacker can exploit the wwwupdate.cgi endpoint to upload and apply arbitrary updates.

The weakness was disclosed by Adrien Rey as mbs-2025-0001. It is possible to read the advisory at mbs-solutions.de. This vulnerability is known as CVE-2025-41764 since 04/16/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 6.0.1.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-208375). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.1
CNA Vector (CERTVDE): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: UBR-01 Mk II/UBR-02/UBR-LON 6.0.1.0

Timelineinfo

04/16/2025 CVE reserved
03/09/2026 +327 days Advisory disclosed
03/09/2026 +0 days VulDB entry created
03/12/2026 +3 days VulDB entry last update

Sourcesinfo

Advisory: mbs-2025-0001
Researcher: Adrien Rey
Status: Confirmed

CVE: CVE-2025-41764 (🔒)
GCVE (CVE): GCVE-0-2025-41764
GCVE (VulDB): GCVE-100-349807
EUVD: 🔒

Entryinfo

Created: 03/09/2026 12:22
Updated: 03/12/2026 20:39
Changes: 03/09/2026 12:22 (64), 03/09/2026 13:34 (1), 03/12/2026 20:39 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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