TeamViewer before 14.7.48644 on Windows loads untrusted DLLs in certain situations.
Priority LOW 34CWE-427Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-427.
Summary
TeamViewer before 14.7.48644 on Windows loads untrusted DLLs in certain situations.
Why it matters now
EPSS 0.0047 40th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:teamviewer:teamviewer:*:*:*:*:*:*:*:* | before 9.0.259145; 10.0.2551 to before 10.0.259144; 11.0.90968 to before 11.0.259143; 12.0.92876 to before 12.0.259142; 13.0.5058 to before 13.2.36222; 14.0.8346 to before 14.2.56678; 14.3.4730 to before 14.7.48644 | Vulnerable | TeamViewer |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:teamviewer:teamviewer:*:*:*:*:*:*:*:* Versions before 9.0.259145; 10.0.2551 to before 10.0.259144; 11.0.90968 to before 11.0.259143; 12.0.92876 to before 12.0.259142; 13.0.5058 to before 13.2.36222; 14.0.8346 to before 14.2.56678; 14.3.4730 to before 14.7.48644 Vulnerable ·TeamViewer
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-34803
- 2026-10-03 Alias added: GHSA-2x34-356c-v9qp
References
Advisory 7
- https://community.teamviewer.com/English/discussion/111154/windows-v14-7-48644
- https://community.teamviewer.com/English/discussion/111153/windows-v14-2-56678
- https://community.teamviewer.com/English/discussion/111152/windows-v13-2-36222
- https://community.teamviewer.com/English/discussion/111151/windows-v12-0-259142
- https://community.teamviewer.com/English/discussion/111150/windows-v11-0-259143
- https://community.teamviewer.com/English/discussion/111149/windows-v10-0-259144
- https://community.teamviewer.com/English/discussion/111147/windows-v9-0-259145
More Teamviewer vulnerabilities
- TI-2019-13681 TeamViewer Desktop through 14.7.1965 allows a bypass of remote-login access control… KEVCVSS 3.1HIGH 7.0
- TI-2020-10745 TeamViewer Desktop for Windows before 15.8.3 does not properly quote its custom URI… CVSS 3.1HIGH 8.8
- TI-2010-02989 Untrusted search path vulnerability in TeamViewer 5.0.8703 and earlier allows local… CVSS 2.0HIGH 9.3
- TI-2021-13849 Memory corruption in TeamViewer CVSS 3.1HIGH 8.8
- TI-2018-11870 TeamViewer 10.x through 13.x allows remote attackers to bypass the brute-force… CVSS 3.0CRITICAL 9.8
- TI-2019-13268 In Omron CX-Supervisor, Versions 3.5 (12) and prior, Omron CX-Supervisor ships with… CVSS 3.1HIGH 8.8
Sources
- CVE-2021-34803 · CVE Program
- CVE-2021-34803 · NVD
- FIRST EPSS
- GHSA-2x34-356c-v9qp · GitHub Advisory Database · CC BY 4.0
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