What’s Vulnerable › Vulnerabilities

CVE-2022-22780: Zoom Chat Susceptible to Zip Bombing

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-02-09 · updated 2026-06-17
• Weakness: CWE-400

Description

The Zoom Client for Meetings chat functionality was susceptible to Zip bombing attacks in the following product versions: Android before version 5.8.6, iOS before version 5.9.0, Linux before version 5.8.6, macOS before version 5.7.3, and Windows before version 5.6.3. This could lead to availability issues on the client host by exhausting system resources.

Affected products

• Zoom Workplace: before 5.6.3; before 5.7.3; before 5.8.6; before 5.9.0 — fixed in 5.6.3, 5.7.3, 5.8.6, 5.9.0

How to fix

Upgrade to a fixed version: Zoom Workplace 5.6.3, 5.7.3, 5.8.6, 5.9.0. 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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