CVE-2020-11634

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-15 · updated 2026-06-17
Weakness: CWE-427

Description

The Zscaler Client Connector for Windows prior to 2.1.2.105 had a DLL hijacking vulnerability caused due to the configuration of OpenSSL. A local adversary may be able to execute arbitrary code in the SYSTEM context.

Affected products

Zscaler Client Connector: before 2.1.2.105 — fixed in 2.1.2.105

How to fix

Upgrade to a fixed version: Zscaler Client Connector 2.1.2.105. Check the vendor advisory for mitigations.

References

https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2020?applicable_category=Windows&applicable_version=2.1.2.105
https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2020?applicable_category=Windows&applicable_version=2.1.2.105

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