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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (42.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.blackmagicdesign.com/ (Product)
- github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-57437 (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.