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CVE-2025-41763— Unchecked role in wwwdnload.cgi

Quick assessment

Affected
MBS UBR-01 Mk II
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MBS UBR-01 Mk II等都是德国MBS公司的产品。MBS UBR-01 Mk II是一款远程基站设备。MBS UBR-02是一款远程基站设备。MBS UBR-LON是一款工业自动化系统的通信接口设备。 MBS多款产品存在安全漏洞，该漏洞源于wwwdnload.cgi端点授权不足，可能导致下载管理员可用的任何资源。以下产品受到影响：MBS UBR-01 Mk II、MBS UBR-02和MBS UBR-LON。

CVSS 6.5 · Medium EPSS 0.24% · P14
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I. Basic Information for CVE-2025-41763

Vulnerability Information
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Vulnerability Title
Unchecked role in wwwdnload.cgi
Source: CVE Program / CVE List V5
Vulnerability Description
A low‑privileged remote attacker can directly interact with the wwwdnload.cgi endpoint to download any resource available to administrators, including system backups and certificate request files.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
将系统数据暴露到未授权控制的范围
Source: CVE Program / CVE List V5
Vulnerability Title
MBS多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MBS UBR-01 Mk II等都是德国MBS公司的产品。MBS UBR-01 Mk II是一款远程基站设备。MBS UBR-02是一款远程基站设备。MBS UBR-LON是一款工业自动化系统的通信接口设备。 MBS多款产品存在安全漏洞，该漏洞源于wwwdnload.cgi端点授权不足，可能导致下载管理员可用的任何资源。以下产品受到影响：MBS UBR-01 Mk II、MBS UBR-02和MBS UBR-LON。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MBS UBR-01 Mk II 0.0.0 ~ 6.0.1.0 -
MBS UBR-02 0.0.0 ~ 6.0.1.0 -
MBS UBR-LON 0.0.0 ~ 6.0.1.0 -

II. Public POCs for CVE-2025-41763

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III. Intelligence Information for CVE-2025-41763

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Vendor Advisories for CVE-2025-41763 (1)

Same Patch Batch · MBS · 2026-03-09 · 15 CVEs total

CVE-2025-41764 9.1 CRITICAL Unchecked role in wwwupdate.cgi
CVE-2025-41765 9.1 CRITICAL Unchecked role in wwwupload.cgi
CVE-2025-41758 8.8 HIGH Arbitrary Write with wwwupload.cgi
CVE-2025-41766 8.8 HIGH Stack buffer overflow on parsing web request
CVE-2025-41757 8.8 HIGH Arbitrary Write with ubr-restore
CVE-2025-41756 8.1 HIGH Arbitrary Write with ubr-editfile
CVE-2025-41761 7.8 HIGH Privilege escalation possible
CVE-2025-41772 7.5 HIGH wwwupdate.cgi Session token in URL
CVE-2025-41767 7.2 HIGH Signature bypass on update upload
CVE-2025-41754 6.5 MEDIUM Arbitrary Read with ubr-editfile
CVE-2025-41755 6.5 MEDIUM Arbitrary Read with ubr-logread
CVE-2025-41762 6.2 MEDIUM Secret leak with wwwdnload.cgi
CVE-2025-41760 4.9 MEDIUM Pass filter with Empty Table
CVE-2025-41759 4.9 MEDIUM Use of wildcard (“*” or “all”) in Block list

IV. Related Vulnerabilities

Same product: UBR-01 Mk II
Same vendor: MBS
Same weakness: CWE-497

V. Comments for CVE-2025-41763

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