CVE-2026-19743: Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) in TeamViewer Desktop Clients
TeamViewer · Full Client
Vendor fix available · Affected: TeamViewer Full Client · Exploitation: not established
ExploitationNot established
Not in CISA KEV as of catalogue 2026.11.13 (13 Nov)
- In CISA KEV: not seen
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public: not seen
- Not establishedNothing in the sources we check
Higher than 3% of scored CVEs
DescriptionNVD
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.
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- TeamViewer
- Published
- September 2026
Coverage2 articles · 2 outlets
One row per outlet, in order of first report. First in our coverage: SecurityOnline, 30 Sep.
- Wed 30 Sep, 06:01 UTC. SecurityOnline, first report. TeamViewer Fixes Five Flaws That Could Enable Remote Code Execution.
- Thu 1 Oct, 14:53 UTC. SOCRadar, its first report on the story. TeamViewer Fixes Flaw Allowing Remote Attackers to Bypass Permissions.
- First report
- Article
- Running total
Show as tableHide table
| Published (UTC) | Outlet | Headline |
|---|---|---|
| 30 Sep 06:01 | SecurityOnline | TeamViewer Fixes Five Flaws That Could Enable Remote Code Execution |
| 1 Oct 14:53 | SOCRadar | TeamViewer Fixes Flaw Allowing Remote Attackers to Bypass Permissions |
- TeamViewer Fixes Flaw Allowing Remote Attackers to Bypass PermissionsSOCRadar · mentions it in passing
- TeamViewer Fixes Five Flaws That Could Enable Remote Code ExecutionSecurityOnline · first in our coverage · mentions it in passing
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