What’s Vulnerable › Vulnerabilities

CVE-2021-34408

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-27 · updated 2026-06-17
• Weakness: CWE-59

Description

The Zoom Client for Meetings for Windows in all versions before version 5.3.2 writes log files to a user writable directory as a privileged user during the installation or update of the client. This could allow for potential privilege escalation if a link was created between the user writable directory used and a non-user writable directory.

Affected products

• Zoom Workplace: before 5.3.2 — fixed in 5.3.2

How to fix

Upgrade to a fixed version: Zoom Workplace 5.3.2. Check the vendor advisory for mitigations.

References

• https://explore.zoom.us/en/trust/security/security-bulletin/
• https://explore.zoom.us/en/trust/security/security-bulletin/

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