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CVE-2026-92371: CWE-59 Improper link resolution before file access ('link following') in TeamViewer Full Client

0
High
VulnerabilityCVE-2026-92371cvecve-2026-92371cwe-59
Published: 09/29/2026 (09/29/2026, 15:41:12 UTC)
Source: CVE Database V5
Vendor/Project: TeamViewer
Product: Full Client

Description

TeamViewer Full Client and Host for Linux prior version 15.82 contains an improper path validation vulnerability in the Cloud Session Recording (CSR) functionality. By exploiting a race condition during path validation and subsequent file access, a local authenticated attacker may cause privileged file operations in unintended locations on the affected system.

CVSS v3.1

Score 7.0high

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

TeamViewer

Full Client

Affected versions
>=15.0 <15.82

TeamViewer

Host

Affected versions
>=15.0 <15.82

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/29/2026, 17:13:41 UTC

Technical Analysis

TeamViewer Full Client and Host for Linux prior to version 15.82 contain a CWE-59 improper link resolution vulnerability in the Cloud Session Recording (CSR) feature. This flaw arises from a race condition during path validation and subsequent file access, enabling a local authenticated attacker with low privileges to cause privileged file operations at unintended file system locations. The vulnerability has a CVSS 3.1 base score of 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and impacts on confidentiality, integrity, and availability.

Potential Impact

An attacker with local authenticated access can exploit this vulnerability to perform privileged file operations in unintended locations, potentially leading to unauthorized modification or disclosure of sensitive files and disruption of system availability. The vulnerability affects confidentiality, integrity, and availability of the system.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor TeamViewer advisories for updates addressing this vulnerability. Until a fix is available, limit local authenticated access to trusted users and consider disabling the Cloud Session Recording functionality if feasible.

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Technical Details

Data Version
5.2
Assigner Short Name
TV
Date Reserved
2026-09-16T07:16:01.956Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6abbf0c2c9b3d5d17704c51d

Added to database: 09/29/2026, 17:09:22 UTC

Last enriched: 09/29/2026, 17:13:41 UTC

Last updated: 09/29/2026, 18:20:12 UTC

Views: 6

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