CVE-2026-82987: CWE-306 Missing Authentication for Critical Function in Viewsonic vCast
Description
There exists a screen capture endpoint in vCast media streaming service in ViewSonic ViewBoard unknown allows a remote, unauthenticated attacker to capture and exfiltrate the current screen content via GET requests to an unauthenticated /snapshot or /screen endpoint returning JPEGs
Affected software
Viewsonic
vCast
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- certcc
- Date Reserved
- 2026-08-31T15:22:17.573Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://kb.cert.org/vuls/id/234131","vendor":"CERT"}]
Threat ID: 6ad928464d27ba8daa01072a
Added to database: 10/21/2026, 21:01:58 UTC
Last updated: 10/21/2026, 21:01:58 UTC
Views: 1
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