TeamViewer DEX Client Denial of Service Vulnerability

MEDIUM (6.5) No Patch (3 days)
cwe-20denial-of-servicedex-clientteamviewervulnerabilitywindows

Threat Intelligence

Low Risk
EPSS Score: 0.02% chance of exploitation (percentile: 3%)
🔍 Detection Tools: None available in major open-source tools
⚔️ Exploit Availability: No public exploits found

How we test →

What is it?

The TeamViewer DEX Client is a software component used by some organizations for remote access and support. This vulnerability allows malicious actors to cause a denial of service (application crash) via a crafted command, resulting in service termination.

Am I affected?

You're affected if you use A vulnerability. Specific version info not stated in the advisory.

Affected Products

TeamViewer / DEX Client

How to fix

To fix this vulnerability:

  • Upgrade to TeamViewer DEX Client version 25.11 or later.
    Download from the official TeamViewer website.
  • Immediate mitigations:
    • Restrict network access to your TeamViewer instance (firewall it from the public internet)
    • Audit application crash patterns for suspicious activity
    • Monitor for unauthorized service termination

References