CVE-2025-41766— Stack buffer overflow on parsing web request
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I. Basic Information for CVE-2025-41766
Vulnerability Information
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Vulnerability Title
Stack buffer overflow on parsing web request
Source: NVD (National Vulnerability Database)
Vulnerability Description
A low-privileged remote attacker can trigger a stack-based buffer overflow via a crafted HTTP POST request using the ubr-network method resulting in full device compromise.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
MBS多款产品 缓冲区错误漏洞
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多款产品存在缓冲区错误漏洞，该漏洞源于低权限远程攻击者可通过特制HTTP POST请求触发基于栈的缓冲区溢出，可能导致设备完全被控制。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
II. Public POCs for CVE-2025-41766
| # | POC Description | Source Link | Shenlong Link |
|---|
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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-2025-41757 | 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-2025-41763 | 6.5 MEDIUM | Unchecked role in wwwdnload.cgi |
| 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
V. Comments for CVE-2025-41766
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