CVE-2026-19743 json
Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) in TeamViewer Desktop Clients
published 2026-09-29 41 d ago modified 2026-09-30 39 d ago also EUVD-2026-89019
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 3%
- public exploits
- 0
- none known
Summary
Improper path validation in the local IPC service of TeamViewer Full Client and Host on Windows, Linux, and macOS prior to version 15.82 allows a local authenticated user with low privileges to perform arbitrary file writes with elevated privileges (NT AUTHORITY/SYSTEM \ root). By sending crafted IPC commands to the local service daemon, an attacker could manipulate file paths, leading to local privilege escalation.
Patch / fix
- TeamViewer Full Client 13.2.36230 (Windows), 13.2.153994 (MacOS), 13.2.153995 (Linux), 14.7.48855 (Linux), 14.7.48855 (MacOS), 14.7.48855 (Windows), 15.64.8 (Legacy Windows 7 & 8), 15.82
- TeamViewer Host 13.2.36230 (Windows), 13.2.153994 (MacOS), 13.2.153995 (Linux), 14.7.48855 (Linux), 14.7.48855 (MacOS), 14.7.48855 (Windows), 15.64.8 (Legacy Windows 7 & 8), 15.82
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 40 d ago
Exploit prediction
0.15% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- TeamViewer Full Client
- TeamViewer Host
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
Sources
- CVE List CVE-2026-19743
- NVD CVE-2026-19743
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.