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CRITICAL · 9.8

CVE-2020-11633

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 arbi...

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
ZscalerClient Connector< 2.1.2.81

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2020-11633?

CVE-2020-11633 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 arbi...

How severe is CVE-2020-11633?

CVE-2020-11633 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2020-11633?

Check the references section above for vendor advisories and patch information. Affected products include: Zscaler Client Connector.