Server Side Request Forgery in Zoom Client for Meetings chat
Priority LOW 29CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
The Zoom Client for Meetings before version 5.7.3 (for Android, iOS, Linux, macOS, and Windows) contain a server side request forgery vulnerability in the chat\'s "link preview" functionality. In versions prior to 5.7.3, if a user were to enable the chat\'s "link preview" feature, a malicious actor could trick the user into potentially sending arbitrary HTTP GET requests to URLs that the actor cannot reach directly.
Why it matters now
EPSS 0.00792 56th percentileScored 2026-11-07
Fix Fixed Zoom Client for Meetings for Android (Zoom Video Communications Inc): 5.7.3Zoom Client for Meetings for iOS (Zoom Video Communications Inc): 5.7.3+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 5.7.3 | 5.7.3 | Patch available | CNA |
| Zoom Video Communications, Inc. | Zoom Client for Meetings for iOS | before 5.7.3 | 5.7.3 | Patch available | CNA |
| Zoom Video Communications, Inc. | Zoom Client for Meetings for Linux | before 5.7.3 | 5.7.3 | 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 5.7.3 | 5.7.3 | Patch available | CNA |
- Zoom Client for Meetings for Android VendorZoom Video Communications, Inc. Affected before 5.7.3 Fixed in 5.7.3 Patch available CNA
- Zoom Client for Meetings for iOS VendorZoom Video Communications, Inc. Affected before 5.7.3 Fixed in 5.7.3 Patch available CNA
- Zoom Client for Meetings for Linux VendorZoom Video Communications, Inc. Affected before 5.7.3 Fixed in 5.7.3 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 5.7.3 Fixed in 5.7.3 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:*:*:* | before 5.7.3 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Apple |
| cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Apple |
| cpe:2.3:o:google:android:-:*:*:*:*:*:*:* | not specified by NVD | Running on | |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:*:*:* Versions before 5.7.3 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
- cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
- cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
- Fix · CNA Zoom Client for Meetings for Android (Zoom Video Communications Inc) Fixed in 5.7.3
- Fix · CNA Zoom Client for Meetings for iOS (Zoom Video Communications Inc) Fixed in 5.7.3
- Fix · CNA Zoom Client for Meetings for Linux (Zoom Video Communications Inc) Fixed in 5.7.3
- 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 5.7.3
Timeline
- 2026-10-02 Threatist record created from CVE-2021-34425
- 2026-10-03 Alias added: GHSA-8737-w627-mrv7
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-2021-34425 · CVE Program
- CVE-2021-34425 · NVD
- FIRST EPSS
- GHSA-8737-w627-mrv7 · 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