Ref# ADV2025_451 | Date: Dec 24th 2025

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TeamViewer has published a security advisory highlighting vulnerabilities in the following products on December 11^th, 2025. It is recommended that you take the necessary precautions by ensuring your products are always updated.

• TeamViewer DEX Client – NomadBranch.exe – versions prior to 1E Client 25.11.0.29
• TeamViewer DEX Client – NomadBranch.exe – versions prior to 1E Client 25.9.0.46 – HF-PLTPKG-524 (Hotfix)
• TeamViewer DEX Client – NomadBranch.exe – versions prior to 1E Client 25.5.0.53 – HF-PLTPKG-526 (Hotfix)
• TeamViewer DEX Client – NomadBranch.exe – versions prior to 1E Client 24.5.0.69 – HF-PLTPKG-525 (Hotfix)
• TeamViewer DEX – multiple versions

For more information on these updates, you can follow these URLs:

• Improper input validation in TeamViewer
• Command Injection and Privilege Escalation vulnerabilities in TeamViewer
• TeamViewer Trust Center

The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.

PDF Download: TeamViewer Security Advisory

References

• TeamViewer Security Advisory. (December 23, 2025). Retrieved from Canadian Centre for Cyber Security.
  https://www.cyber.gc.ca/en/alerts-advisories/teamviewer-security-advisory-av25-861

 

• Command Injection and Privilege Escalation vulnerabilities in TeamViewer. (December 11, 2025). Retrieved from TeamViewer.
  https://www.teamviewer.com/latam/resources/trust-center/security-bulletins/tv-2025-1006/