CVE-2025-57432

critical · 9.8

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.

9.8

CVSS

0.6%

EPSS (exploit prob.)

49th

EPSS percentile

2025-09-22

Published

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

Weaknesses

CWE-306

Affected products

Vendor	Product	Affected versions
blackmagicdesign	web_presenter_hd_firmware	3.3
blackmagicdesign	web_presenter_hd	all versions
blackmagicdesign	web_presenter_4k_firmware	3.3
blackmagicdesign	web_presenter_4k	all versions

Check a specific version with /api/v1/cve/match.

References

https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-57432
https://www.blackmagicdesign.com/
https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-57432

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-57432