TeamViewer Link Following Denial-of-Service Vulnerability
Vulnerability Details
This vulnerability allows local attackers to create a denial-of-service condition on affected installations of TeamViewer. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the TeamViewer service. By creating a junction, an attacker can abuse the service to create arbitrary files. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Additional Details
TeamViewer has issued an update to correct this vulnerability. More details can be found at:
https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1003/
Disclosure Timeline
- 2025-07-31 - Vulnerability reported to vendor
- 2025-08-26 - Coordinated public release of advisory
- 2025-08-26 - Advisory Updated
Credit
oriotie
