Zoom Chat Susceptible to Zip Bombing
Priority LOW 32CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
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.
Why it matters now
EPSS 0.01697 77th percentileScored 2026-11-07
Fix Fixed Zoom Client for Meetings for Android (Zoom Video Communications Inc): 5.8.6Zoom Client for Meetings for iOS (Zoom Video Communications Inc): 5.9.0+3 more products
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 |
|---|---|---|---|---|---|
| Zoom Video Communications, Inc. | Zoom Client for Meetings for Android | before 5.8.6 | 5.8.6 | Patch available | CNA |
| Zoom Video Communications, Inc. | Zoom Client for Meetings for iOS | before 5.9.0 | 5.9.0 | Patch available | CNA |
| Zoom Video Communications, Inc. | Zoom Client for Meetings for Linux | before 5.8.6 | 5.8.6 | Patch available | CNA |
| Zoom Video Communications, Inc. | Zoom Client for Meetings for macOS | before 5.7.3 | 5.7.3 | Patch available | CNA |
| Zoom Video Communications, Inc. | Zoom Client for Meetings for Windows | before 5.6.3 | 5.6.3 | Patch available | CNA |
- Zoom Client for Meetings for Android VendorZoom Video Communications, Inc. Affected before 5.8.6 Fixed in 5.8.6 Patch available CNA
- Zoom Client for Meetings for iOS VendorZoom Video Communications, Inc. Affected before 5.9.0 Fixed in 5.9.0 Patch available CNA
- Zoom Client for Meetings for Linux VendorZoom Video Communications, Inc. Affected before 5.8.6 Fixed in 5.8.6 Patch available CNA
- Zoom Client for Meetings for macOS VendorZoom Video Communications, Inc. Affected before 5.7.3 Fixed in 5.7.3 Patch available CNA
- Zoom Client for Meetings for Windows VendorZoom Video Communications, Inc. Affected before 5.6.3 Fixed in 5.6.3 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:windows:*:* | before 5.6.3 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:macos:*:* | before 5.7.3 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:android:*:* | before 5.8.6 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:linux:*:* | before 5.8.6 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:iphone_os:*:* | before 5.9.0 | Vulnerable | Zoom Video Communications, Inc. |
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:windows:*:* Versions before 5.6.3 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:macos:*:* Versions before 5.7.3 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:android:*:* Versions before 5.8.6 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:linux:*:* Versions before 5.8.6 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:iphone_os:*:* Versions before 5.9.0 Vulnerable ·Zoom Video Communications, Inc.
Remediation
- Fix · CNA Zoom Client for Meetings for Android (Zoom Video Communications Inc) Fixed in 5.8.6
- Fix · CNA Zoom Client for Meetings for iOS (Zoom Video Communications Inc) Fixed in 5.9.0
- Fix · CNA Zoom Client for Meetings for Linux (Zoom Video Communications Inc) Fixed in 5.8.6
- Fix · CNA Zoom Client for Meetings for macOS (Zoom Video Communications Inc) Fixed in 5.7.3
- Fix · CNA Zoom Client for Meetings for Windows (Zoom Video Communications Inc) Fixed in 5.6.3
Timeline
- 2026-10-02 Threatist record created from CVE-2022-22780
- 2026-10-03 Alias added: GHSA-xpj5-4mpq-74xf
References
More Zoom Video Communications, Inc. Meetings vulnerabilities
- TI-2021-13217 Improper certificate validation in Zoom Client for Meetings for Windows CVSS 3.1CRITICAL 9.8
- TI-2021-13457 Buffer overflow in Zoom client and other products CVSS 3.1CRITICAL 9.8
- TI-2022-11393 Improper URL parsing in Zoom Clients CVSS 3.1CRITICAL 9.6
- TI-2022-07034 Improperly constrained session cookies in Zoom Client for Meetings CVSS 3.1CRITICAL 9.1
- TI-2022-07035 Update package downgrade in Zoom Client for Meetings for Windows CVSS 3.1HIGH 8.8
- TI-2022-07033 Improper XML Parsing in Zoom Client for Meetings CVSS 3.1HIGH 8.1
Sources
- CVE-2022-22780 · CVE Program
- CVE-2022-22780 · NVD
- FIRST EPSS
- GHSA-xpj5-4mpq-74xf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences