CVE-2021-26737 Detail


The Zscaler Client Connector for macOS prior to 3.6 did not sufficiently validate RPC clients. A local adversary without sufficient privileges may be able to shutdown the Zscaler tunnel by exploiting a race condition.


CVSS 3.x Severity and Metrics:

CVSS 2.0 Severity and Metrics:

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

Weakness Enumeration

CWE-ID CWE Name Source
CWE-346 Origin Validation Error NIST   Zscaler, Inc.  

Change History

1 change records found show changes

Initial Analysis by NIST 10/26/2023 8:33:45 PM

Action Type Old Value New Value
Added CPE Configuration
     *cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:macos:*:* versions up to (excluding) 3.6
Added CVSS V3.1
Added CWE
Changed Reference Type No Types Assigned Release Notes

Quick Info

CVE Dictionary Entry:
NVD Published Date:
NVD Last Modified:
Zscaler, Inc.