HTML injection in Zoom Linux client
Priority LOW 25CWE-74Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In the Zoom Client for Meetings for Ubuntu Linux before version 5.1.0, there is an HTML injection flaw when sending a remote control request to a user in the process of in-meeting screen sharing. This could allow meeting participants to be targeted for social engineering attacks.
Why it matters now
EPSS 0.00623 50th percentileScored 2026-11-07
Fix Fixed Zoom Client for Meetings for Ubuntu Linux (Zoom Video Communications Inc): 5.1.0
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 Ubuntu Linux | before 5.1.0 | 5.1.0 | Patch available | CNA |
- Zoom Client for Meetings for Ubuntu Linux VendorZoom Video Communications, Inc. Affected before 5.1.0 Fixed in 5.1.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zoom:zoom_client_for_meetings:*:*:*:*:*:linux:*:* | before 5.1.0 | Vulnerable | Zoom Video Communications, Inc. |
- cpe:2.3:a:zoom:zoom_client_for_meetings:*:*:*:*:*:linux:*:* Versions before 5.1.0 Vulnerable ·Zoom Video Communications, Inc.
Remediation
- Fix · CNA Zoom Client for Meetings for Ubuntu Linux (Zoom Video Communications Inc) Fixed in 5.1.0
Timeline
- 2026-10-02 Threatist record created from CVE-2021-34419
- 2026-10-03 Alias added: GHSA-484c-hxgg-w2g4
- 2026-11-04 EPSS moved to the 50th–90th percentile
References
More Zoom Video Communications, Inc. Zoom Client For Meetings vulnerabilities
- TI-2021-13454 Zoom Windows installation executable signature bypass CVSS 3.1HIGH 7.4
Sources
- CVE-2021-34419 · CVE Program
- CVE-2021-34419 · NVD
- FIRST EPSS
- GHSA-484c-hxgg-w2g4 · 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