Blackmagic Web Presenter version 3.3 exposes a Telnet service on port 9977 that accepts…
Priority HIGH 82CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-306.
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00639 50th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:blackmagicdesign:web_presenter_hd_firmware:3.3:*:*:*:*:*:*:* | 3.3 | Vulnerable | Blackmagic Design |
| cpe:2.3:h:blackmagicdesign:web_presenter_hd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Blackmagic Design |
| cpe:2.3:o:blackmagicdesign:web_presenter_4k_firmware:3.3:*:*:*:*:*:*:* | 3.3 | Vulnerable | Blackmagic Design |
| cpe:2.3:h:blackmagicdesign:web_presenter_4k:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Blackmagic Design |
- cpe:2.3:o:blackmagicdesign:web_presenter_hd_firmware:3.3:*:*:*:*:*:*:* Versions 3.3 Vulnerable ·Blackmagic Design
- cpe:2.3:h:blackmagicdesign:web_presenter_hd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Blackmagic Design
- cpe:2.3:o:blackmagicdesign:web_presenter_4k_firmware:3.3:*:*:*:*:*:*:* Versions 3.3 Vulnerable ·Blackmagic Design
- cpe:2.3:h:blackmagicdesign:web_presenter_4k:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Blackmagic Design
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-57432
- 2026-10-03 Alias added: GHSA-8c8w-8hrx-cvpq
- 2026-10-23 EPSS moved to the 50th–90th percentile
References
Sources
- CVE-2025-57432 · CVE Program
- CVE-2025-57432 · NVD
- FIRST EPSS
- GHSA-8c8w-8hrx-cvpq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences