Broken Access Control in TeamViewer DEX Platform (On Premises)

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Summary

CVECVE-2026-8381
StatePUBLISHED
AssignerTV
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-22 09:16:32 UTC
Updated2026-05-22 09:16:32 UTC
DescriptionA broken access control vulnerability exists in the TeamViewer DEX Platform (On‑Premises) prior version 9.2. Certain backend API endpoints do not correctly enforce authorization checks, allowing an authenticated user with low privileges to perform actions and access resources intended only for higher‑privileged roles. An attacker with low‑privileged credentials may exploit this to gain unauthorized access to administrative or sensitive functionality.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

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

EPSS: 0.000330000 probability, percentile 0.102660000 (date 2026-05-28)

Problem Types: CWE-862 | CWE-862 CWE-862 – Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
3.1CNACVSS5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA TeamViewer DEX On-premises affected 9.2 custom Not specified

References

ReferenceSourceLinkTags
www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1005 [email protected] www.teamviewer.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: Update to the latest version (9.2 or the latest version available).

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