TeamViewer DEX Client up to 24.5.0.69/25.5.0.53/25.9.0.46 on Windows Content Distribution Service NomadBranch.exe input validation

Summaryinfo

A vulnerability classified as very critical has been found in TeamViewer DEX Client up to 24.5.0.69/25.5.0.53/25.9.0.46 on Windows. This affects an unknown part of the file NomadBranch.exe of the component Content Distribution Service. This manipulation causes input validation. This vulnerability is tracked as CVE-2025-44016. The attack is only possible within the local network. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in TeamViewer DEX Client up to 24.5.0.69/25.5.0.53/25.9.0.46 on Windows. It has been declared as very critical. Affected by this vulnerability is some unknown processing of the file NomadBranch.exe of the component Content Distribution Service. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was disclosed with Bank of America. It is possible to read the advisory at teamviewer.com. This vulnerability is known as CVE-2025-44016 since 04/30/2025. The exploitation appears to be easy. Access to the local network is required for this attack to succeed. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/11/2025).

Upgrading to version 25.11.0.29 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• TeamViewer

Name

• DEX Client

Version

• 24.5.0.0
• 24.5.0.1
• 24.5.0.2
• 24.5.0.3
• 24.5.0.4
• 24.5.0.5
• 24.5.0.6
• 24.5.0.7
• 24.5.0.8
• 24.5.0.9
• 24.5.0.10
• 24.5.0.11
• 24.5.0.12
• 24.5.0.13
• 24.5.0.14
• 24.5.0.15
• 24.5.0.16
• 24.5.0.17
• 24.5.0.18
• 24.5.0.19
• 24.5.0.20
• 24.5.0.21
• 24.5.0.22
• 24.5.0.23
• 24.5.0.24
• 24.5.0.25
• 24.5.0.26
• 24.5.0.27
• 24.5.0.28
• 24.5.0.29
• 24.5.0.30
• 24.5.0.31
• 24.5.0.32
• 24.5.0.33
• 24.5.0.34
• 24.5.0.35
• 24.5.0.36
• 24.5.0.37
• 24.5.0.38
• 24.5.0.39
• 24.5.0.40
• 24.5.0.41
• 24.5.0.42
• 24.5.0.43
• 24.5.0.44
• 24.5.0.45
• 24.5.0.46
• 24.5.0.47
• 24.5.0.48
• 24.5.0.49
• 24.5.0.50
• 24.5.0.51
• 24.5.0.52
• 24.5.0.53
• 24.5.0.54
• 24.5.0.55
• 24.5.0.56
• 24.5.0.57
• 24.5.0.58
• 24.5.0.59
• 24.5.0.60
• 24.5.0.61
• 24.5.0.62
• 24.5.0.63
• 24.5.0.64
• 24.5.0.65
• 24.5.0.66
• 24.5.0.67
• 24.5.0.68
• 24.5.0.69
• 25.5.0.0
• 25.5.0.1
• 25.5.0.2
• 25.5.0.3
• 25.5.0.4
• 25.5.0.5
• 25.5.0.6
• 25.5.0.7
• 25.5.0.8
• 25.5.0.9
• 25.5.0.10
• 25.5.0.11
• 25.5.0.12
• 25.5.0.13
• 25.5.0.14
• 25.5.0.15
• 25.5.0.16
• 25.5.0.17
• 25.5.0.18
• 25.5.0.19
• 25.5.0.20
• 25.5.0.21
• 25.5.0.22
• 25.5.0.23
• 25.5.0.24
• 25.5.0.25
• 25.5.0.26
• 25.5.0.27
• 25.5.0.28
• 25.5.0.29
• 25.5.0.30
• 25.5.0.31
• 25.5.0.32
• 25.5.0.33
• 25.5.0.34
• 25.5.0.35
• 25.5.0.36
• 25.5.0.37
• 25.5.0.38
• 25.5.0.39
• 25.5.0.40
• 25.5.0.41
• 25.5.0.42
• 25.5.0.43
• 25.5.0.44
• 25.5.0.45
• 25.5.0.46
• 25.5.0.47
• 25.5.0.48
• 25.5.0.49
• 25.5.0.50
• 25.5.0.51
• 25.5.0.52
• 25.5.0.53
• 25.9.0.0
• 25.9.0.1
• 25.9.0.2
• 25.9.0.3
• 25.9.0.4
• 25.9.0.5
• 25.9.0.6
• 25.9.0.7
• 25.9.0.8
• 25.9.0.9
• 25.9.0.10
• 25.9.0.11
• 25.9.0.12
• 25.9.0.13
• 25.9.0.14
• 25.9.0.15
• 25.9.0.16
• 25.9.0.17
• 25.9.0.18
• 25.9.0.19
• 25.9.0.20
• 25.9.0.21
• 25.9.0.22
• 25.9.0.23
• 25.9.0.24
• 25.9.0.25
• 25.9.0.26
• 25.9.0.27
• 25.9.0.28
• 25.9.0.29
• 25.9.0.30
• 25.9.0.31
• 25.9.0.32
• 25.9.0.33
• 25.9.0.34
• 25.9.0.35
• 25.9.0.36
• 25.9.0.37
• 25.9.0.38
• 25.9.0.39
• 25.9.0.40
• 25.9.0.41
• 25.9.0.42
• 25.9.0.43
• 25.9.0.44
• 25.9.0.45
• 25.9.0.46

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion