CVE-2025-57437

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.

CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-200 CWE-200

Affected Products

Vendor	Product	Versions
blackmagicdesign	web_presenter_hd_firmware	All
blackmagicdesign	web_presenter_hd	All

References

Exploits

https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-57437

Other References

https://www.blackmagicdesign.com/

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-57437? +

CVE-2025-57437 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-57437? +

CVE-2025-57437 affects products from blackmagicdesign, specifically: web_presenter_hd, web_presenter_hd_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-57437? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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