High severity · published Oct 5, 2026
CVE-2026-82988
There exists an arbitrary file download in vCast APK delivery mechanism in ViewSonic ViewBoard unknown allows a remote, unauthenticated attacker to trigger unprivileged APK…
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VC
vCast · Viewsonic
v0.0.0 through v3.2.715 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82988
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82988
blog.l3afs.space
https://blog.l3afs.space/posts/Vcast-Viewsonic-RCE-chain/
kb.cert.org
https://kb.cert.org/vuls/id/234131
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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…
–
CVE-2026-82987
No description published yet