# CVE-2026-111585: TeamViewer integer overflow in remote-control screen decompression

Source: https://junglewise.ai/threats/cve-2026-111585-an-integer-overflow-in-the-remote-control-screen-processing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-27. Updated: 2026-10-27  
License: CC BY 4.0 with a link back

CVE-2026-111585 · Severity: high · CVSS 8.8 · Published 2026-10-27

TeamViewer is remote-access software used by millions for support and collaboration. An integer overflow in the screen processing component allows attackers controlling a compromised host to crash the application or execute arbitrary code with the user's privileges. Exploitation requires a user to initiate a session to an attacker-controlled machine.

Technologies: [Teamviewer Full Client](https://junglewise.ai/threats/technologies/full-client). Vendors: [Teamviewer](https://junglewise.ai/threats/vendors/teamviewer).

## Quick answers

**Is CVE-2026-111585 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111585 being exploited in the wild.

**How severe is CVE-2026-111585?** High severity, with a CVSS score of 8.8, published 27 October 2026.

**Which products and versions are affected?** Teamviewer Full Client Prior to 15.83 (Windows, Linux, macOS); legacy versions 15.64, 14.7, 13.2; Teamviewer Portable Prior to 15.83 (Windows); Teamviewer Remote Control App Prior to 15.83 (Android).

**Is there a fix for CVE-2026-111585?** Yes: fixed in 15.83 (Full Client, Portable, Remote Control App). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-111585 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-111585?** Check whether you run Teamviewer Full Client, Teamviewer Portable or Teamviewer Remote Control App at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 15.83 (Full Client, Portable, Remote Control App)

## Technical details

An integer overflow in the remote-control screen decompression component of TeamViewer clients (CVE-2026-111585) can lead to heap-based buffer overflow, triggered when a malicious remote host supplies crafted screen-image data. The attack requires network access and user interaction to establish a remote-control session. Successful exploitation may cause denial of service or arbitrary code execution with viewer process privileges.

## Affected products

- TeamViewer Full Client Prior to 15.83 (Windows, Linux, macOS); legacy versions 15.64, 14.7, 13.2
- TeamViewer Portable Prior to 15.83 (Windows)
- TeamViewer Remote Control App Prior to 15.83 (Android)

## Timeline

- 2026-10-27: disclosed: Security bulletin TV-2026-1011 published

## References

- [https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1011/](https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1011/)

## Related threats

- [TeamViewer improper IPC access control in Remote Management Monitoring](https://junglewise.ai/threats/cve-2026-92375-an-improper-access-control-vulnerability-in-the-ipc-communication)
- [TeamViewer Full Client and Host TOCTOU race condition in privilege helper](https://junglewise.ai/threats/cve-2026-92374-a-time-of-check-time-of-use-toctou-race-condition-combined-with)
- [TeamViewer Full Client out-of-bounds write in screen decoder](https://junglewise.ai/threats/cve-2026-92372-an-out-of-bounds-write-vulnerability-in-the-screen-image-decoder)
- [TeamViewer Full Client access control bypass in session establishment](https://junglewise.ai/threats/cve-2026-92370-an-improper-access-control-vulnerability-in-teamviewer-full)
- [TeamViewer Full Client and Host TOCTOU race condition in installer rollback](https://junglewise.ai/threats/cve-2026-92369-teamviewer-full-client-and-host-prior-to-version-15-82-on-windows)