CVE-2026-59567
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk1th percentile - higher than 1% of all known CVEs
Summary
Multiple vulnerabilities in Zscaler Client Connector allow local privilege escalation, giving an unprivileged user the ability to execute arbitrary code in a privileged context.
Risk Assessment
A local attacker can gain full control of the system, potentially leading to data theft, malware installation, or permanent device compromise.
Recommendation
Update Zscaler Client Connector to the latest version with fixes. Restrict local access to systems running the client.
Other vulnerabilities in Zscaler Client Connector
See all- CVE-2026-59568Critical
Multiple vulnerabilities on affected versions of Zscaler Client Connector allow remote code execution, giving an unauthenticated, unprivileged user the ability to execute arbitrary code in the ZCC context.
- CVE-2026-59564Critical
An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.
- CVE-2026-59566High
A locally exploitable buffer overflow bug can cause a local denial-of-service attack on Zscaler Client Connector on Android and ChromeOS.
- CVE-2026-59565High
A remotely exploitable buffer overflow bug can cause a local and kernel denial-of-service attack on Zscaler Client Connector on Windows.
- CVE-2026-22569Medium
An incorrect startup configuration of Zscaler Client Connector on Windows may cause a limited amount of traffic to bypass inspection under rare circumstances.
Original NVD description (English source)
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.