# CVE-2026-22569 — Zscaler Client Connector

> As of 2026-03-31, CVE-2026-22569 is a MEDIUM-severity vulnerability in Zscaler Client Connector, CVSS v3.1 5.4, EPSS 0.1% (6.7th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-22569, most recently “Multiple Zscaler Client Connector Flaws Enable Remote Code Execution (CVE-2026-59568)”.

**Last updated:** 2026-03-31

## What is CVE-2026-22569?

An incorrect startup configuration of affected versions of Zscaler Client Connector on Windows may cause a limited amount of traffic from being inspected under rare circumstances.

The record classifies CVE-2026-22569 under weakness class [CWE-1289](https://cwe.mitre.org/data/definitions/1289.html). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 211 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 5.4 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 6.7% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-03-31

## Is CVE-2026-22569 being exploited?

It currently carries a trending score of 7 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Zscaler](https://intel.threadlinqs.com/vendors/zscaler): Client Connector

## How to fix CVE-2026-22569

No vendor patch reference has been recorded for CVE-2026-22569 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-22569

1 tracked threat in the Threadlinqs corpus references CVE-2026-22569, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Multiple Zscaler Client Connector Flaws Enable Remote Code Execution (CVE-2026-59568)](https://intel.threadlinqs.com/threat/TL-2026-2139) — CRITICAL · 2026-08-25

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10.

**Other references**

- [help.zscaler.com](https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2025)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-22569
Full detection coverage and IOCs for threats exploiting CVE-2026-22569 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp