DoS in TeamViewer DEX Client NomadBranch.exe <25.11 via crafted cmd
CVE-2025-12687 Published on December 11, 2025
Denial-of-Service Vulnerability in NomadBranch.exe
A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to cause a denial of service (application crash) via a crafted command, resulting in service termination.
Vulnerability Analysis
Weakness Type
Improper Input Validation
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.
Affected Versions
TeamViewer DEX:- Before 25.11.0.29 is affected.
- Before and including 25.9.0.46 is affected.
- Before and including 25.5.053 is affected.
- Before and including 24.5.0.69 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.