Integer overflow in Teamviewer Full Client

CVE-2026-111585

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.

Vulnerability class: Integer Overflow

Published .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-111585?
CVE-2026-111585 is a high-severity vulnerability in Teamviewer Full Client, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2026-10-27.
How severe is CVE-2026-111585?
High severity. CVSS v3 base score is 8.8 out of 10.