# Zscaler Client Connector vulnerabilities

Source: https://junglewise.ai/threats/technologies/client-connector  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/client-connector.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 9 vulnerabilities in Zscaler Client Connector: 0 in the last 7 days and 8 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-59570, was published on 14 September 2026. Nothing in the last four weeks, down from 3 vulnerabilities in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 8
- All time: 9 (2 critical, 0 exploited in the wild)

## About Zscaler Client Connector

Zscaler endpoint security agent for client devices.

## Latest Zscaler Client Connector vulnerabilities

- [CVE-2026-59570: Zscaler Client Connector peer app access control bypass](https://junglewise.ai/threats/cve-2026-59570-zscaler-client-connector-peer-app-access-control-bypass) (high, CVSS 7.5, published 14 Sep 2026)
- [CVE-2026-59569: Zscaler Client Connector improper input validation on Android and ChromeOS](https://junglewise.ai/threats/cve-2026-59569-zscaler-client-connector-improper-input-validation-on-android-and) (high, CVSS 8.1, published 14 Sep 2026)
- [CVE-2026-25687: Zscaler Client Connector race condition in ZPA tunnel handler](https://junglewise.ai/threats/cve-2026-25687-zscaler-client-connector-race-condition-in-zpa-tunnel-handler) (high, CVSS 8.1, published 14 Sep 2026)
- [CVE-2026-59568: Zscaler Client Connector remote code execution](https://junglewise.ai/threats/cve-2026-59568-zscaler-client-connector-remote-code-execution) (critical, CVSS 9.1, published 24 Aug 2026)
- [CVE-2026-59567: Zscaler Client Connector local privilege escalation](https://junglewise.ai/threats/cve-2026-59567-zscaler-client-connector-local-privilege-escalation) (high, CVSS 8.8, published 24 Aug 2026)
- [CVE-2026-59566: Zscaler Client Connector buffer overflow on Android and ChromeOS](https://junglewise.ai/threats/cve-2026-59566-zscaler-client-connector-buffer-overflow-on-android-and-chromeos) (high, CVSS 8.4, published 24 Aug 2026)
- [CVE-2026-59565: Zscaler Client Connector buffer overflow denial-of-service](https://junglewise.ai/threats/cve-2026-59565-zscaler-client-connector-buffer-overflow-denial-of-service) (high, CVSS 8.8, published 24 Aug 2026)
- [CVE-2026-59564: Zscaler Client Connector authentication bypass](https://junglewise.ai/threats/cve-2026-59564-zscaler-client-connector-authentication-bypass) (critical, CVSS 9.1, published 24 Aug 2026)
- [CVE-2026-22569: Zscaler Client Connector inspection bypass on Windows](https://junglewise.ai/threats/cve-2026-22569-zscaler-client-connector-inspection-bypass-on-windows) (medium, CVSS 5.4, published 31 Mar 2026)

## Most severe Zscaler Client Connector vulnerabilities

- [CVE-2026-59568: Zscaler Client Connector remote code execution](https://junglewise.ai/threats/cve-2026-59568-zscaler-client-connector-remote-code-execution) (critical, CVSS 9.1, published 24 Aug 2026)
- [CVE-2026-59564: Zscaler Client Connector authentication bypass](https://junglewise.ai/threats/cve-2026-59564-zscaler-client-connector-authentication-bypass) (critical, CVSS 9.1, published 24 Aug 2026)
- [CVE-2026-59565: Zscaler Client Connector buffer overflow denial-of-service](https://junglewise.ai/threats/cve-2026-59565-zscaler-client-connector-buffer-overflow-denial-of-service) (high, CVSS 8.8, published 24 Aug 2026)
- [CVE-2026-59567: Zscaler Client Connector local privilege escalation](https://junglewise.ai/threats/cve-2026-59567-zscaler-client-connector-local-privilege-escalation) (high, CVSS 8.8, published 24 Aug 2026)
- [CVE-2026-59566: Zscaler Client Connector buffer overflow on Android and ChromeOS](https://junglewise.ai/threats/cve-2026-59566-zscaler-client-connector-buffer-overflow-on-android-and-chromeos) (high, CVSS 8.4, published 24 Aug 2026)
- [CVE-2026-25687: Zscaler Client Connector race condition in ZPA tunnel handler](https://junglewise.ai/threats/cve-2026-25687-zscaler-client-connector-race-condition-in-zpa-tunnel-handler) (high, CVSS 8.1, published 14 Sep 2026)
- [CVE-2026-59569: Zscaler Client Connector improper input validation on Android and ChromeOS](https://junglewise.ai/threats/cve-2026-59569-zscaler-client-connector-improper-input-validation-on-android-and) (high, CVSS 8.1, published 14 Sep 2026)
- [CVE-2026-59570: Zscaler Client Connector peer app access control bypass](https://junglewise.ai/threats/cve-2026-59570-zscaler-client-connector-peer-app-access-control-bypass) (high, CVSS 7.5, published 14 Sep 2026)
- [CVE-2026-22569: Zscaler Client Connector inspection bypass on Windows](https://junglewise.ai/threats/cve-2026-22569-zscaler-client-connector-inspection-bypass-on-windows) (medium, CVSS 5.4, published 31 Mar 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 3 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 5 | 2 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 3 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Zscaler Client Connector vulnerabilities", https://junglewise.ai/threats/technologies/client-connector, 9 November 2026.