CVE-2025-57432
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability51. percentile0.6%
ProductBlackmagicdesign Web Presenter Hd Firmware
PublishedSep 22, 2025
First seenSep 22, 2025
Weakness typeCWE-306Missing authentication for critical function
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| blackmagicdesign web_presenter_hd_firmware | 3.3 | — |
| blackmagicdesign web_presenter_4k_firmware | 3.3 | — |
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