CVE-2020-11633
9.8 · CRITICALOverview
CVE-2020-11633 is a critical-severity vulnerability affecting zscaler client_connector. It was published on July 15, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The Zscaler Client Connector for Windows prior to 2.1.2.74 had a stack based buffer overflow when connecting to misconfigured TLS servers. An adversary would potentially have been able to execute arbitrary code with system privileges.
Remediation
Check the references section for vendor advisories and patches from zscaler. Update client_connector to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| zscaler | client_connector | >= 0, < 2.1.2.81 | Affected |
Frequently Asked Questions
What is CVE-2020-11633?
CVE-2020-11633 is a critical-severity vulnerability affecting zscaler client_connector. It was published on July 15, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2020-11633?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-11633?
Check the references section for vendor advisories and patches from zscaler. Update client_connector to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-11633?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-11633 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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