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CVE-2025-64990— Command Injection in 1E-Explorer-TachyonCore-LogoffUser Instruction

Quick assessment

Affected
TeamViewer DEX
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 DEX Client是德国TeamViewer公司的一个数字化员工体验和终端管理软件。 TeamViewer DEX Client V21.1之前版本存在安全漏洞，该漏洞源于输入验证不当，可能导致远程执行任意命令。

CVSS 6.8 · Medium EPSS 0.83% · P56
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I. Basic Information for CVE-2025-64990

Vulnerability Information
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Vulnerability Title
Command Injection in 1E-Explorer-TachyonCore-LogoffUser Instruction
Source: CVE Program / CVE List V5
Vulnerability Description
A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Explorer-TachyonCore-LogoffUser instruction prior V21.1. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands. Exploitation enables remote execution of elevated commands on devices connected to the platform.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
TeamViewer DEX Client 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TeamViewer DEX Client是德国TeamViewer公司的一个数字化员工体验和终端管理软件。 TeamViewer DEX Client V21.1之前版本存在安全漏洞，该漏洞源于输入验证不当，可能导致远程执行任意命令。
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 DEX 0 ~ 21.1 -

II. Public POCs for CVE-2025-64990

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III. Intelligence Information for CVE-2025-64990

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Other References for CVE-2025-64990 (1)

Same Patch Batch · TeamViewer · 2025-12-11 · 13 CVEs total

CVE-2025-44016 8.8 HIGH File Hash Validation Bypass in NomadBranch.exe
CVE-2025-64988 7.2 HIGH Command Injection in 1E-Nomad-GetCmContentLocations Instruction
CVE-2025-64987 7.2 HIGH Command Injection in 1E-Explorer-TachyonCore-CheckSimpleIoC Instruction
CVE-2025-64986 7.2 HIGH Command Injection in 1E-Explorer-TachyonCore-DevicesListeningOnAPort Instruction
CVE-2025-64989 7.2 HIGH Command Injection in 1E-Explorer-TachyonCore-FindFileBySizeAndHash Instruction
CVE-2025-64991 6.8 MEDIUM Command Injection in 1E-PatchInsights-Deploy Instruction
CVE-2025-64992 6.8 MEDIUM Command Injection in 1E-Nomad-PauseNomadJobQueue Instruction
CVE-2025-64993 6.8 MEDIUM Command Injection in 1E-ConfigMgrConsoleExtensions Instructions
CVE-2025-12687 6.5 MEDIUM Denial-of-Service Vulnerability in NomadBranch.exe
CVE-2025-64994 6.5 MEDIUM Privilege Escalation via Uncontrolled Search Path in 1E-Nomad-SetWorkRate instruction
CVE-2025-64995 6.5 MEDIUM Privilege Escalation via Process Hijacking in 1E-Exchange-NomadClientHealth-ConfigureGener
CVE-2025-46266 4.3 MEDIUM Unauthenticated Transmission of Data in NomadBranch.exe

IV. Related Vulnerabilities

Same product: DEX
Same vendor: TeamViewer
Same weakness: CWE-20

V. Comments for CVE-2025-64990

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