Unauthenticated Transmission of Data in NomadBranch.exe
Priority LOW 28CWE-20Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to coerce the service into transmitting data to an arbitrary internal IP address, potentially leaking sensitive information.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00204 10th percentileScored 2026-11-07
Fix Fixed DEX (TeamViewer): 25.11.0.29
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TeamViewer | DEX | before 25.11.0.29 | 25.11.0.29 | Patch available | CNA |
- DEX VendorTeamViewer Affected before 25.11.0.29 Fixed in 25.11.0.29 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:teamviewer:digital_employee_experience:*:*:*:*:*:*:*:* | before 25.11 | Vulnerable | TeamViewer |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:teamviewer:digital_employee_experience:*:*:*:*:*:*:*:* Versions before 25.11 Vulnerable ·TeamViewer
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
- Fix · CNA DEX (TeamViewer) Fixed in 25.11.0.29
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
TeamViewer DEX 25.11.0.29
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2025-28565 File Hash Validation Bypass in NomadBranch.exePriority MEDIUM 46
- TI-2025-11638 Denial-of-Service Vulnerability in NomadBranch.exePriority LOW 34
Timeline
- 2026-10-02 Threatist record created from CVE-2025-46266
- 2026-10-03 Alias added: GHSA-gfgh-99f9-3f6g
References
More TeamViewer Digital Employee Experience vulnerabilities
- TI-2025-28565 File Hash Validation Bypass in NomadBranch.exe CVSS 3.1HIGH 8.8
- TI-2025-40180 Command Injection in 1E-Explorer-TachyonCore-FindFileBySizeAndHash Instruction CVSS 3.1HIGH 7.2
- TI-2025-40179 Command Injection in 1E-Nomad-GetCmContentLocations Instruction CVSS 3.1HIGH 7.2
- TI-2025-40178 Command Injection in 1E-Explorer-TachyonCore-CheckSimpleIoC Instruction CVSS 3.1HIGH 7.2
- TI-2025-40177 Command Injection in 1E-Explorer-TachyonCore-DevicesListeningOnAPort Instruction CVSS 3.1HIGH 7.2
- TI-2026-18989 Out-of-bounds read vulnerability in Content Distribution Service CVSS 3.1HIGH 8.1
Sources
- CVE-2025-46266 · CVE Program
- CVE-2025-46266 · NVD
- FIRST EPSS
- GHSA-gfgh-99f9-3f6g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences