Vulnerability · Published Sep 27, 2021 · Assigned by Zoom
CVE-2021-33907
Critical 9.8
In plain English
A critical-severity security flaw in Zoom Client for Meetings for Windows. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.0% (higher than 91% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)4.0%top 9.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Zoom Client for Meetings for Windows | All versions of the Zoom Client for Meetings for Windows before version 5.3.0 |
References
- https://explore.zoom.us/en/trust/security/security-bulletin/ x_refsource_MISC