CVE-2026-111583 TeamViewer Full Client and Host - Privilege Escalation

TeamViewer Full Client and Host < 15.82 for Windows contain a privilege escalation caused by improper access control in the installer staging directory, letting local authenticated users execute arbitrary commands as SYSTEM, exploit requires local authentication.

CVSS base score 7.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.19% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation, Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Published
27 October 2026
Updated
29 October 2026
Weakness
CWE-269

Vendor fix

Update to version 15.82 or later.

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

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