---
title: "CVE-2026-82988: ViewSonic ViewBoard - Arbitrary File Download"
description: "ViewSonic ViewBoard contains an arbitrary file download vulnerability in the vCast APK delivery mechanism, letting remote unauthenticated attackers trigger unprivileged APK installation via a malicious APK URL."
url: https://panop.io/threat-heartbeat/CVE-2026-82988/
---

# CVE-2026-82988 ViewSonic ViewBoard - Arbitrary File Download

ViewSonic ViewBoard contains an arbitrary file download vulnerability in the vCast APK delivery mechanism, letting remote unauthenticated attackers trigger unprivileged APK installation via a malicious APK URL.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.46% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-82988)

## Details

Type

Arbitrary File Download

CVSS vector

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

Published

6 October 2026

Updated

15 October 2026

Weakness

[CWE-287](https://cwe.mitre.org/data/definitions/287.html)

## Vendor fix

Update to the latest version of ViewSonic ViewBoard.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-82988](https://nvd.nist.gov/vuln/detail/CVE-2026-82988)
- [https://blog.l3afs.space/posts/Vcast-Viewsonic-RCE-chain/](https://blog.l3afs.space/posts/Vcast-Viewsonic-RCE-chain/)
- [https://kb.cert.org/vuls/id/234131](https://kb.cert.org/vuls/id/234131)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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