What is CVE-2025-57437?

CVE-2025-57437 is a critical-severity vulnerability in Blackmagicdesign Web Presenter Hd, classified under Information Disclosure. CVSS score: 9.8/10. Published 2025-09-22.

How severe is CVE-2025-57437?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Information disclosure in Blackmagicdesign Web Presenter Hd

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.

Vulnerability class: Information Disclosure

EPSS: 0.005 (39.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Blackmagicdesign Web_presenter_hd
Blackmagicdesign Web_presenter_hd_firmware — versions 3.3
N/a — versions n/a

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-57437?: CVE-2025-57437 is a critical-severity vulnerability in Blackmagicdesign Web Presenter Hd, classified under Information Disclosure. CVSS score: 9.8/10. Published 2025-09-22.
How severe is CVE-2025-57437?: Critical severity. CVSS v3 base score is 9.8 out of 10.