Local Privilege Escalation via DLL Sideloading in TeamViewer Patch Management for Windows

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-92377
StatePUBLISHED
AssignerTV
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-27 16:17:32 UTC
Updated2026-10-28 14:45:23 UTC
DescriptionImproper access control in the Patch Management update mechanism of TeamViewer Full Client and Host for Windows prior to version 15.82 allows a local authenticated attacker with low privileges to supply a signed executable through a forged IPC response and cause it to load a malicious DLL from a user-writable temporary directory. Successful exploitation results in arbitrary code execution with NT AUTHORITY\SYSTEM privileges.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.001090000 probability, percentile 0.012320000 (date 2026-10-28)

Problem Types: CWE-732 | CWE-732 CWE-732: Incorrect Permission Assignment for Critical Resource

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA TeamViewer Full Client affected 15.82 custom Windows
CNA TeamViewer Full Client affected 15.64.0 (Legacy Windows 7 & 8) 15.64.10 (Legacy Windows 7 & 8) custom Windows
CNA TeamViewer Full Client affected 14.7.0 14.7.48868 custom Windows
CNA TeamViewer Full Client affected 13.2.0 13.2.36231 custom Windows
CNA TeamViewer Host affected 15.82 custom Windows
CNA TeamViewer Host affected 15.64.0 (Legacy Windows 7 & 8) 15.64.10 (Legacy Windows 7 & 8) custom Windows
CNA TeamViewer Host affected 14.7.0 14.7.48868 custom Windows
CNA TeamViewer Host affected 13.2.0 13.2.36231 custom Windows

References

ReferenceSourceLinkTags
www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1012 [email protected] www.teamviewer.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: 0x_alibabas (Giuliano Sanfins) (en)

Additional Advisory Data

Solutions

CNA: Update to the latest available version.

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