High severity · published Aug 24, 2026
CVE-2026-59567
Local privilege escalation
8.8
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CC
Client Connector · Zscaler
before Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0372; before MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191; before Linux: 3.7.2.64, 4.2.1.64 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-59567
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-59567
help.zscaler.com
https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026
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