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CVE-2026-59567

Local privilege escalation

HIGH
8.8
CVSS Score
Published: August 24, 2026 at 01:41 PM UTC
Updated: October 12, 2026 at 03:10 PM UTC
1 product affected across 1 vendorClient Connector

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Severity
HIGH8.8
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

Multiple vulnerabilities on affected versions of Zscaler Client Connector allow local privilege escalation, giving an unprivileged user the ability to execute arbitrary code in a privileged context.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Client Connector· Zscaler
90%
0 ≤ v < Linux: 3.7.2.64, 4.2.1.640 ≤ v < MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.1910 ≤ v < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.03720
Affected range stops below Linux: 3.7.2.64, 4.2.1.64, so it looks safe — our inference, not a vendor statement
Affected range stops below MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191, so it looks safe — our inference, not a vendor statement
Affected range stops below Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0372, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHZscaler
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-280

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