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CVE-2019-18196

6.7 · MEDIUM

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…

Published Oct 24, 2019CWE-426EPSS 0.63%

Overview

CVE-2019-18196 is a medium-severity vulnerability. It was published on October 24, 2019 and has a CVSS 3.1 base score of 6.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

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

How CyberStrike helps

Frequently asked questions

What is CVE-2019-18196?

CVE-2019-18196 is a medium-severity vulnerability. It was published on October 24, 2019 and has a CVSS 3.1 base score of 6.7 (MEDIUM).

How severe is CVE-2019-18196?

This vulnerability has a CVSS 3.1 base score of 6.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2019-18196?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-18196?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-18196 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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