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High severity · published Dec 11, 2025
CVE-2025-64986
A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Explorer-TachyonCore-DevicesListeningOnAPort instruction prior V21
7.2
CVSS
1.2%
EPSS
No
On KEV
Description
A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Explorer-TachyonCore-DevicesListeningOnAPort instruction prior V21. 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DE
Digital Employee Experience · Teamviewer
before 21.0 · source: NVD
Affected product
DE
Digital Employee Experience
Teamviewer
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-64986
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-64986
Vendor Advisory
https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1006/
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