Telnet Service Vulnerability in Blackmagic Web Presenter
CVE-2025-57432

9.8CRITICAL

Key Information:

Vendor

Blackmagic Design

Status
Blackmagic Web Presenter
Vendor
CVE Published:
22 September 2025

What is CVE-2025-57432?

The Blackmagic Web Presenter version 3.3 is susceptible to a vulnerability due to an exposed Telnet service on port 9977. This service permits remote attackers to execute unauthenticated commands, enabling them to modify stream settings, manipulate video modes, and potentially disrupt the device's functionality. The lack of authentication mechanisms presents a significant risk of unauthorized access, making it imperative for users to secure their devices against such vulnerabilities.

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References

https://www.blackmagicdesign.com/
https://github.com/shiky8/my--cve-vulnerability-research/...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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