CVE-2021-26737: Privilege Escalation Using PID Reuse in ZCC macOS
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.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-26737?
CVE-2021-26737 is a vulnerability that allows a local adversary without sufficient privileges to shutdown the Zscaler tunnel by exploiting a race condition in the Zscaler Client Connector for macOS prior to version 3.6.
How does CVE-2021-26737 affect Zscaler Client Connector for macOS?
CVE-2021-26737 affects Zscaler Client Connector for macOS prior to version 3.6, allowing a local adversary to shut down the Zscaler tunnel.
What is the severity of CVE-2021-26737?
CVE-2021-26737 has a severity rating of 5.5 (Medium).
How can I fix CVE-2021-26737?
To fix CVE-2021-26737, update Zscaler Client Connector for macOS to version 3.6 or later.
Where can I find more information about CVE-2021-26737?
More information about CVE-2021-26737 can be found at the following link: [Zscaler Client Connector App Release Summary](https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS&applicable_version=3.6&deployment_date=2022-01-07&id=1388686)