CVE Catalog

CVE-2025-57432

CriticalCVSS 9.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
0.64%

51th percentile - higher than 51% of all known CVEs

Summary

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.

Risk Assessment

An unauthenticated attacker can change stream configuration and disrupt device operation, potentially leading to broadcast interruptions or unauthorized changes. The risk is high because no authentication is required.

Recommendation

Update Blackmagic Web Presenter firmware to the latest version if the vendor provides a fix. Until then, restrict access to port 9977 to trusted networks.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS