CVE-2026-8381: CWE-862 – Missing Authorization in TeamViewer DEX (On-premises)
A 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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-8381) in TeamViewer DEX (On-premises) versions before 9.2 is a broken access control issue (CWE-862). Certain backend API endpoints do not correctly enforce authorization, enabling low-privileged authenticated users to access or perform administrative or sensitive functions improperly. The CVSS 3.1 base score is 5.4 (medium), reflecting network attack vector, low attack complexity, low privileges required, no user interaction, and partial confidentiality and integrity impact. The vulnerability is published but no official remediation or patch is currently documented.
Potential Impact
An attacker with valid low-privileged credentials could exploit this vulnerability to gain unauthorized access to administrative or sensitive functionality within the TeamViewer DEX (On-premises) platform. This could lead to unauthorized information disclosure and modification of data. There is no indication of availability impact or known active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected TeamViewer DEX (On-premises) instances to trusted users only and monitor for unusual activity related to privilege escalation attempts. Follow vendor updates closely for any forthcoming patches or official mitigations.
CVE-2026-8381: CWE-862 – Missing Authorization in TeamViewer DEX (On-premises)
Description
A 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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-8381) in TeamViewer DEX (On-premises) versions before 9.2 is a broken access control issue (CWE-862). Certain backend API endpoints do not correctly enforce authorization, enabling low-privileged authenticated users to access or perform administrative or sensitive functions improperly. The CVSS 3.1 base score is 5.4 (medium), reflecting network attack vector, low attack complexity, low privileges required, no user interaction, and partial confidentiality and integrity impact. The vulnerability is published but no official remediation or patch is currently documented.
Potential Impact
An attacker with valid low-privileged credentials could exploit this vulnerability to gain unauthorized access to administrative or sensitive functionality within the TeamViewer DEX (On-premises) platform. This could lead to unauthorized information disclosure and modification of data. There is no indication of availability impact or known active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected TeamViewer DEX (On-premises) instances to trusted users only and monitor for unusual activity related to privilege escalation attempts. Follow vendor updates closely for any forthcoming patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TV
- Date Reserved
- 2026-05-12T08:47:56.307Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a10177ee1370fbb48d0f0a5
Added to database: 5/22/2026, 8:44:46 AM
Last enriched: 5/22/2026, 9:00:08 AM
Last updated: 5/23/2026, 8:08:55 PM
Views: 24
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