CVE-2025-57432

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
---
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CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 66%
VendorProductVersion
blackmagicdesignweb_presenter_hd_firmware
3.3
blackmagicdesignweb_presenter_4k_firmware
3.3
𝑥
= Vulnerable software versions
Common Weakness Enumeration
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