CVE-2021-34803

HIGH

7.8

CVSS Score

Published: June 16, 2021 at 02:46 PM UTC

Updated: June 17, 2026 at 03:56 AM UTC

1 product affected across 1 vendorTeamViewer· also runs on 1 platform

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Severity

HIGH7.8

Exploit prediction

EPSS 0.5%

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

TeamViewer · Teamviewer

95%

v < 9.0.25914510.0.2551 ≤ v < 10.0.25914411.0.90968 ≤ v < 11.0.25914312.0.92876 ≤ v < 12.0.25914213.0.5058 ≤ v < 13.2.3622214.0.8346 ≤ v < 14.2.5667814.3.4730 ≤ v < 14.7.48644

Affected range stops below 10.0.259144, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.0.259143, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.0.259142, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.2.36222, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.2.56678, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.7.48644, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.0.259145, so it looks safe — our inference, not a vendor statement

microsoft-windows (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Windows · Microsoft

95%

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references