CVE-2025-57437

CVE-2025-57437 is a critical-severity vulnerability in Blackmagicdesign Web Presenter Hd Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Description

The Blackmagic Web Presenter HD firmware version 3.3 exposes sensitive information via an unauthenticated Telnet service on port 9977. When connected, the service reveals extensive device configuration data including: - Model, version, and unique identifiers - Network settings including IP, MAC, DNS - Current stream platform, stream key, and streaming URL - Audio/video configuration This data can be used to hijack live streams or perform network reconnaissance.

Frequently asked questions

What is CVE-2025-57437?
The Blackmagic Web Presenter HD firmware version 3.3 exposes sensitive information via an unauthenticated Telnet service on port 9977. When connected, the service reveals extensive device configuration data including: - Model, version, and unique identifiers - Network settings including IP, MAC, DNS - Current stream platform, stream key, and streaming URL - Audio/video configuration This data can be used to hijack live streams or perform network reconnaissance.
How severe is CVE-2025-57437?
CVE-2025-57437 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-57437 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-57437?
CVE-2025-57437 affects Blackmagicdesign Web Presenter Hd Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-57437?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-57437 have an EU (EUVD) identifier?
Yes. CVE-2025-57437 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30803.
When was CVE-2025-57437 published?
CVE-2025-57437 was published on 2025-09-22 and last updated on 2026-06-17.

References

Affected products (1)

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