CVE-2025-57432 — CRITICAL (9.8)

Vulnerability Description

Blackmagic Web Presenter version 3.3 exposes a Telnet service on port 9977 that accepts unauthenticated commands. This service allows remote attackers to manipulate stream settings, including changing video modes and possibly altering device functionality. No credentials or authentication mechanisms are required to interact with the Telnet interface.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Blackmagicdesign	Web Presenter Hd Firmware	3.3
Blackmagicdesign	Web Presenter Hd	-
Blackmagicdesign	Web Presenter 4K Firmware	3.3
Blackmagicdesign	Web Presenter 4K	-

Related Weaknesses (CWE)

CWE-306

References

https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-5743ExploitThird Party Advisory
https://www.blackmagicdesign.com/Product
https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-5743ExploitThird Party Advisory

FAQ

What is CVE-2025-57432?

CVE-2025-57432 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Blackmagic Web Presenter version 3.3 exposes a Telnet service on port 9977 that accepts unauthenticated commands. This service allows remote attackers to manipulate stream settings, including changing...

How severe is CVE-2025-57432?

CVE-2025-57432 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-57432?

Check the references section above for vendor advisories and patch information. Affected products include: Blackmagicdesign Web Presenter Hd Firmware, Blackmagicdesign Web Presenter Hd, Blackmagicdesign Web Presenter 4K Firmware, Blackmagicdesign Web Presenter 4K.