CVE-2025-41767
Received
Received - Intake
Update Signature Bypass in UBR wwwupdate.cgi Enables Full Compromise
Publication date: 2026-03-09
Last updated on: 2026-03-11
Assigner: CERT VDE
Description
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.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mbs-solutions | universal_bacnet_router_firmware | to 6.0.1.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-347 | The product does not verify, or incorrectly verifies, the cryptographic signature for data. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability allows a high-privileged remote attacker to fully compromise a device by exploiting an update signature bypass in the wwwupdate.cgi method of the device's web interface.
How can this vulnerability impact me? :
An attacker exploiting this vulnerability can gain full control over the affected device, potentially leading to complete compromise including confidentiality, integrity, and availability impacts.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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