PT-2026-98307

There is an input injection in vCast exposed network services in ViewSonic ViewBoard that allows a remote, unauthenticated attacker to inject arbitrary input into service endpoints via network-based HTTP requests to unauthenticated endpoints...

ViewSonic vCast media streaming service allows unauthenticated screen exfiltration and device compromise

Overview ViewSonic vCast software, which is included in ViewBoard smartboard devices, contains multiple vulnerabilities that an attacker can chained to achieve full device compromise. Description ViewSonic ViewBoards are widely used smart display devices smartboard, typically deoloyed in enterpri...

PT-2026-98305

Three critical unauthenticated CVEs in ViewSonic vCast CVE-2026-82987, CVE-2026-82988, CVE-2026-82989 allow a remote attacker to chain screen exfiltration with arbitrary APK installation for full device compromise. These are Android-based ViewBoard smartboards, heavily deployed in enterprise and...

PT-2026-98306

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...