Vulnerability · Published Aug 24, 2026 · Assigned by Zscaler
CVE-2026-59568Remote Code Execution
Critical 9.1
In plain English
A critical-severity improper input validation in Client Connector from Zscaler. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.7%top 48.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Zscaler | Client Connector | 0 – before Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.3720 – before MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.1910 – before Linux: 3.7.2.64, 4.2.1.640 – before Android: 4.20 – before ChromeOS: 4.20 – before iOS: 4.5.1 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N