CVE-2025-12687: A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior…

CVE-2025-12687 · Severity: medium · CVSS 6.5 · Published 2025-12-11

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.

Technologies: Microsoft Windows, Teamviewer Digital Employee Experience. Vendors: Microsoft, Teamviewer.

Quick answers

Is CVE-2025-12687 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-12687 being exploited in the wild.
How severe is CVE-2025-12687?
Medium severity, with a CVSS score of 6.5, published 11 December 2025.
Which products and versions are affected?
Microsoft Windows, Teamviewer Digital Employee Experience. The advisory does not name versions.
Is there a fix for CVE-2025-12687?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-12687?
Check whether you run Microsoft Windows or Teamviewer Digital Employee Experience. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Windows
  • Teamviewer Digital Employee Experience

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