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High severity · published Dec 11, 2025
CVE-2025-44016
A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to bypass file…
8.8
CVSS
0.3%
EPSS
No
On KEV
Description
A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to bypass file integrity validation via a crafted request. By providing a valid hash for a malicious file, an attacker can cause the service to incorrectly validate and process the file as trusted, enabling arbitrary code execution under the Nomad Branch service context.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% 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 25.11 · source: NVD
Affected product
DE
Digital Employee Experience
Teamviewer
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-44016
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-44016
Vendor Advisory
https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1005/
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