What is CVE-2021-34803?

CVE-2021-34803 is a high vulnerability published on June 16, 2021. TeamViewer before 14.7.48644 on Windows loads untrusted DLLs in certain situations.

When was CVE-2021-34803 disclosed?

CVE-2021-34803 was first published in the National Vulnerability Database on June 16, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-34803 actively exploited?

CVE-2021-34803 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-34803?

CVE-2021-34803 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2021-34803?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-34803, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

CVE-2021-34803

HIGHNVD 7.87.8—

7.8

TeamViewer before 14.7.48644 on Windows loads untrusted DLLs in certain situations.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 29.6%
KEV: Not listed

References (14)

cve@mitrehttps://community.teamviewer.com/English/discussion/111147/windows-v9-0-259145
cve@mitrehttps://community.teamviewer.com/English/discussion/111149/windows-v10-0-259144
cve@mitrehttps://community.teamviewer.com/English/discussion/111150/windows-v11-0-259143
cve@mitrehttps://community.teamviewer.com/English/discussion/111151/windows-v12-0-259142
cve@mitrehttps://community.teamviewer.com/English/discussion/111152/windows-v13-2-36222
cve@mitrehttps://community.teamviewer.com/English/discussion/111153/windows-v14-2-56678
cve@mitrehttps://community.teamviewer.com/English/discussion/111154/windows-v14-7-48644
af854a3a-2127-422b-91ae-364da2661108https://community.teamviewer.com/English/discussion/111147/windows-v9-0-259145
af854a3a-2127-422b-91ae-364da2661108https://community.teamviewer.com/English/discussion/111149/windows-v10-0-259144
af854a3a-2127-422b-91ae-364da2661108https://community.teamviewer.com/English/discussion/111150/windows-v11-0-259143
af854a3a-2127-422b-91ae-364da2661108https://community.teamviewer.com/English/discussion/111151/windows-v12-0-259142
af854a3a-2127-422b-91ae-364da2661108https://community.teamviewer.com/English/discussion/111152/windows-v13-2-36222
af854a3a-2127-422b-91ae-364da2661108https://community.teamviewer.com/English/discussion/111153/windows-v14-2-56678
af854a3a-2127-422b-91ae-364da2661108https://community.teamviewer.com/English/discussion/111154/windows-v14-7-48644

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CVE-2021-34803

Published

Last Modified

References (14)

Weakness Classification(1)

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-34803?

Same CWE

CVE-2021-34803

📅 Published

🔄 Last Modified

🔗 References (14)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-34803?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (14)

Frequently asked(5)

Related CVEs(same CWE)