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CVE-2026-82987

CVE-2026-82987

HIGH
7.5
CVSS Score
Published: October 21, 2026 at 08:48 PM UTC
Updated: October 30, 2026 at 04:17 PM UTC
1 product affected across 1 vendorVcast

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Severity
HIGH7.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://blog.l3afs.space/posts/Vcast-Viewsonic-RCE-chain/
Source: cverecord
https://kb.cert.org/vuls/id/234131

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-306

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