---
id: "CVE-2026-111585"
kind: "vulnerability"
aliases: ["CVE-2026-111585"]
title: "TeamViewer clients: integer overflow in screen processing lets remote host run code"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["desktop", "package", "remote-support", "teamviewer", "windows"]
not_affected_if: ["patched-15.83-or-later"]
published_at: "2026-10-27T16:17:29+00:00"
first_seen_at: "2026-10-27T16:33:07+00:00"
updated_at: "2026-10-27T16:34:04+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111585", "first_seen_at": "2026-10-27T16:33:07+00:00"}]
---

# TeamViewer clients: integer overflow in screen processing lets remote host run code

TeamViewer clients before 15.83 contain an integer overflow in the remote-control screen processing component. A malicious or compromised remote host can cause a denial of service or, depending on the platform, run arbitrary code with the viewer process's privileges.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Open TeamViewer on each workstation and check the version under Help, About TeamViewer, or run the installed client's version query if the sources give one
- Note whether the install is Full Client, Portable or Remote Control App, since all three are named as affected

## Fix

- Update TeamViewer Full Client, Portable and Remote Control App to `15.83` or later
- Until patched, avoid starting remote-control sessions to hosts you do not fully trust

## Timeline

- 2026-10-27T16:33:07+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111585

## From the sources

An integer overflow in the remote-control
screen processing component of TeamViewer clients (Full Client, Portable and Remote
Control App) prior to version 15.83 may allow a malicious remote host to cause
a denial of service or, depending on the platform, potentially execute
arbitrary code with the privileges of the viewer process. Exploitation requires
a user to establish a remote-control session to an attacker-controlled or
compromised host.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_