CVE-2026-82987

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-82987
StatePUBLISHED
Assignercertcc
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-21 21:19:17 UTC
Updated2026-10-30 16:17:58 UTC
DescriptionThere 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

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.005840000 probability, percentile 0.479300000 (date 2026-11-01)

Problem Types: CWE-306 | CWE-306 Missing Authentication for Critical Function | CWE-306 CWE-306 Missing Authentication for Critical Function

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Viewsonic VCast affected v0.0.0 v3.2.715 custom Not specified

References

ReferenceSourceLinkTags
blog.l3afs.space/posts/Vcast-Viewsonic-RCE-chain [email protected] blog.l3afs.space
kb.cert.org/vuls/id/234131 [email protected] kb.cert.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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