CVE-2021-33907
Last modified
CVE-2021-33907 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The Zoom Client for Meetings for Windows in all versions before 5.3.0 fails to properly validate the certificate information used to sign .msi files when performing an update of the client. This could lead to remote code execution in an elevated privileged context.. EPSS estimates a 3.02% chance of exploitation in the next 30 days.
Description
The Zoom Client for Meetings for Windows in all versions before 5.3.0 fails to properly validate the certificate information used to sign .msi files when performing an update of the client. This could lead to remote code execution in an elevated privileged context.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zoom | Meetings | < 5.3.0 |
References
- https://explore.zoom.us/en/trust/security/security-bulletin/Vendor Advisory
- https://explore.zoom.us/en/trust/security/security-bulletin/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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