CVE-2026-82988
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk18th percentile - higher than 18% of all known CVEs
Summary
There is an arbitrary file download vulnerability in the vCast APK delivery mechanism in ViewSonic ViewBoard. A remote, unauthenticated attacker can trigger unprivileged APK installation by serving a malicious APK URL through an unauthenticated download endpoint.
Risk Assessment
An attacker can install unauthorized applications on the ViewBoard device, potentially compromising system integrity or using the device for further attacks.
Recommendation
Secure the APK download endpoint, e.g., by requiring authentication and validating URLs, and restrict APK installation to trusted sources only.
Other vulnerabilities in ViewSonic ViewBoard
Original NVD description (English source)
There exists an arbitrary file download in vCast APK delivery mechanism in ViewSonic ViewBoard unknown allows a remote, unauthenticated attacker to trigger unprivileged APK installation via serving a malicious APK URL through an unauthenticated download endpoint
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

