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TI-2020-09336 Aliases CVE-2020-11635GHSA-6xqj-rg38-r6rr

The Zscaler Client Connector prior to 3.1.0 did not sufficiently validate RPC clients…

Priority LOW 34Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

The Zscaler Client Connector prior to 3.1.0 did not sufficiently validate RPC clients, which allows a local adversary to execute code with system privileges or perform limited actions for which they did not have privileges.

Why it matters now

EPSS 0.00444 38th percentileScored 2026-11-07
Fix Fixed Zscaler Client Connector for Windows: 3.1.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Zscaler Client Connector for Windowsbefore 3.1.03.1.0Patch availableCNA
  • Zscaler Client Connector for Windows Vendor— Affected before 3.1.0 Fixed in 3.1.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*before 3.1.0VulnerableZscaler
  • cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:* Versions before 3.1.0 Vulnerable ·Zscaler

Remediation

  • Fix · CNA Zscaler Client Connector for Windows Fixed in 3.1.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-11635
  2. 2026-10-03 Alias added: GHSA-6xqj-rg38-r6rr

References

Advisory 1

  • TI-2020-09334 The Zscaler Client Connector for Windows prior to 2.1.2.74 had a stack based buffer… CVSS 3.1CRITICAL 9.8
  • TI-2024-15528 Local Privilege Escalation via lack of input validation CVSS 3.1CRITICAL 9.8
  • TI-2024-15526 Insecure MacOS code sign check fallback CVSS 3.1CRITICAL 9.8
  • TI-2024-15505 Multiple Arbitrary Creates/Overwrites by link following CVSS 3.1CRITICAL 9.8
  • TI-2023-13308 Out-of-bounds write to heap in pacparser CVSS 3.1CRITICAL 9.8
  • TI-2023-13315 ZCC on Linux privilege escalation CVSS 3.1CRITICAL 9.8
See all 40 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences