CVE-2025-57432
BaseFortify
Publication date: 2025-09-22
Last updated on: 2025-10-14
Assigner: MITRE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| blackmagicdesign | web_presenter_hd_firmware | 3.3 |
| blackmagicdesign | web_presenter_hd | * |
| blackmagicdesign | web_presenter_4k_firmware | 3.3 |
| blackmagicdesign | web_presenter_4k | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-306 | The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
Blackmagic Web Presenter version 3.3 has a vulnerability where it exposes a Telnet service on port 9977 that accepts commands without requiring any authentication. This means remote attackers can connect to this service and manipulate stream settings, such as changing video modes or potentially altering the device's functionality, without needing any credentials.
How can this vulnerability impact me? :
This vulnerability can allow remote attackers to control and manipulate the device's streaming settings and functionality without authorization. This could lead to unauthorized changes in video output, disruption of streaming services, or misuse of the device, potentially impacting the reliability and security of your streaming operations.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
You can detect this vulnerability by scanning your network for devices running Blackmagic Web Presenter version 3.3 that have port 9977 open. Using a network scanning tool like nmap, you can run the command: nmap -p 9977 <target-ip>. If the port is open and responds, it indicates the Telnet service is exposed and potentially vulnerable. Additionally, attempting to connect via Telnet to port 9977 (e.g., telnet <target-ip> 9977) and checking if commands can be issued without authentication can confirm the vulnerability.
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include disabling or blocking access to the Telnet service on port 9977 on the Blackmagic Web Presenter device. This can be done by configuring firewall rules to block incoming connections to port 9977 or by disabling the Telnet service if possible. Additionally, restricting network access to trusted hosts only and monitoring for any unauthorized access attempts can help reduce risk until a patch or update is available.