HOMEVULNERABILITIESCVE-2019-18196
MEDIUM

CVE-2019-18196

CWE-426Published: October 24, 2019· Updated: Jun 17, 2026

6.7
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2019-18196 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.7.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Microsoft1 product(s)
windows
teamviewer1 product(s)
teamviewer
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttps://community.teamviewer.com/t5/Announcements/Security-bulletin-CVE-2019-18196/td-p/74564
ADVISORYhttps://community.teamviewer.com/t5/Announcements/Security-bulletin-CVE-2019-18196/td-p/74564

All References (4)

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

Quick Facts

CVE IDCVE-2019-18196
CVSS Score6.7 / 10
SeverityMEDIUM
WeaknessCWE-426
CISA KEVNo
Affected2 vendor(s)
PublishedOct 24, 2019

Related CVEs (CWE-426)

CVE-2025-26155
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CVE-2022-26184
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CVE-2022-3734
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CVE-2024-53866
9.8
CVE-2026-45772
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CVE-2024-35260
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Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-18196 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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