---
title: "CVE-2026-19743: TeamViewer - Path Traversal & Privilege Escalation"
description: "TeamViewer Full Client and Host < 15.82 contain a path traversal caused by improper path validation in the local IPC service, letting local authenticated users with low privileges perform arbitrary file writes with elevated privileges, exploit requires local authentication."
url: https://panop.io/threat-heartbeat/CVE-2026-19743/
---

# CVE-2026-19743 TeamViewer - Path Traversal & Privilege Escalation

TeamViewer Full Client and Host < 15.82 contain a path traversal caused by improper path validation in the local IPC service, letting local authenticated users with low privileges perform arbitrary file writes with elevated privileges, exploit requires local authentication.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.13% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-19743)

## Details

Type

Path Traversal

Impact

File System Write, Privilege Escalation

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

29 September 2026

Updated

15 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Update to version 15.82 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-19743](https://nvd.nist.gov/vuln/detail/CVE-2026-19743)
- [https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1010/](https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1010/)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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