There is an input injection in vCast exposed network services in ViewSonic ViewBoard that allows a remote, unauthenticated attacker to inject… (CVE-2026-82989)
Description
CVE-2026-82989 is a critical input injection vulnerability in the vCast network services of ViewSonic ViewBoard devices. It allows a remote, unauthenticated attacker to inject arbitrary input into service endpoints via HTTP requests to unauthenticated network endpoints. This can lead to full compromise of confidentiality, integrity, and availability of the affected system.
CVSS v3.1
Score 9.8critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an input injection flaw in the vCast exposed network services of ViewSonic ViewBoard. An unauthenticated attacker can remotely send crafted HTTP requests to unauthenticated service endpoints, injecting arbitrary input. The CVSS 3.1 base score is 9.8, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can result in complete compromise of the affected ViewSonic ViewBoard device, including unauthorized data access, modification, or disruption of service. The vulnerability affects confidentiality, integrity, and availability at a critical level.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is currently available. Until a patch is released, restrict network access to the affected services and monitor for suspicious HTTP requests targeting unauthenticated endpoints.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-wx6m-rmf7-wpp6
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-82989"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
Threat ID: 6ac523732cdf04f656c4bf36
Added to database: 10/06/2026, 16:36:03 UTC
Last enriched: 10/06/2026, 16:49:03 UTC
Last updated: 10/06/2026, 18:48:26 UTC
Views: 10
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