CVE-2026-23572— Improper Access Control in TeamViewer clients
Quick assessment
Affected
TeamViewer Remote
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
TeamViewer Host和TeamViewer Full都是德国TeamViewer公司的一个远程控制软件。 TeamViewer Host和TeamViewer Full 15.74.5之前版本存在安全漏洞，该漏洞源于访问控制不当，可能导致经过身份验证的用户绕过“允许后确认”配置，造成未授权访问。
Possible ATT&CK Techniques 1 AI
T1133 · External Remote Services
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I. Basic Information for CVE-2026-23572
Vulnerability Information
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Vulnerability Title
Improper Access Control in TeamViewer clients
Source: CVE Program / CVE List V5
Vulnerability Description
Improper access control in the TeamViewer Full and Host clients (Windows, macOS, Linux) prior version 15.74.5 allows an authenticated user to bypass additional access controls with “Allow after confirmation” configuration in a remote session. An exploit could result in unauthorized access prior to local confirmation. The user needs to be authenticated for the remote session via ID/password, Session Link, or Easy Access as a prerequisite to exploit this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
TeamViewer Host和TeamViewer Full 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TeamViewer Host和TeamViewer Full都是德国TeamViewer公司的一个远程控制软件。 TeamViewer Host和TeamViewer Full 15.74.5之前版本存在安全漏洞，该漏洞源于访问控制不当，可能导致经过身份验证的用户绕过“允许后确认”配置，造成未授权访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| TeamViewer | Remote | 0 ~ 15.74.5 | - |
|
| TeamViewer | Tensor | 0 ~ 15.74.5 | - |
|
| TeamViewer | One | 0 ~ 15.74.5 | - |
|
II. Public POCs for CVE-2026-23572
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-23572 (1)
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V. Comments for CVE-2026-23572
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