Vulnerability · Published Oct 1, 2025 · Assigned by TV
CVE-2025-41421Privilege Escalation via Symbolic Link Spoofing in TeamViewer Client
Medium 4.7
In plain English
A medium-severity security flaw in Full Client from TeamViewer. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).
Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.1%top 96.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper handling of symbolic links in the TeamViewer Full Client and Host for Windows — in versions prior to 15.70 of TeamViewer Remote and Tensor — allows an attacker with local, unprivileged access to a device lacking adequate malware protection to escalate privileges by spoofing the update file path. This may result in unauthorized access to sensitive information.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TeamViewer | Full Client | 11.0.0 – before 15.70 |
| TeamViewer | Host | 11.0.0 – before 15.70 |
Weakness: CWE-59 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N