What is GHSA-r9hh-v5mm-mfgr?

GHSA-r9hh-v5mm-mfgr is a security advisory published by GitHub Security Advisories with High severity. There exists a screen capture endpoint in vCast media streaming service in ViewSonic ViewBoard...

Which CVE IDs does GHSA-r9hh-v5mm-mfgr cover?

GHSA-r9hh-v5mm-mfgr covers the following CVE IDs: CVE-2026-82987. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-r9hh-v5mm-mfgr?

GHSA-r9hh-v5mm-mfgr has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-r9hh-v5mm-mfgrHighCVSS 7.5

There exists a screen capture endpoint in vCast media streaming service in ViewSonic ViewBoard...

Vendor

GitHub Security Advisories

Published

October 21, 2026

Last Modified

October 30, 2026

🔗 CVE IDs covered (1)

CVE-2026-82987 →

📋 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

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-82987
https://blog.l3afs.space/posts/Vcast-Viewsonic-RCE-chain
https://kb.cert.org/vuls/id/234131
https://github.com/advisories/GHSA-r9hh-v5mm-mfgr