Quick answers
- Is CVE-2026-22569 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-22569 being exploited in the wild.
- How severe is CVE-2026-22569?
- Medium severity, with a CVSS score of 5.4, published 31 March 2026.
- Which products and versions are affected?
- Zscaler Client Connector 4.7 before 4.7.0.141, 4.8 before 4.8.0.63.
- Is there a fix for CVE-2026-22569?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-22569 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-22569?
- Check whether you run Zscaler Client Connector at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A vulnerability in the startup configuration of Zscaler Client Connector for Windows (versions 4.7.x before 4.7.0.141 and 4.8.x before 4.8.0.63) can lead to a race condition or improper initialization sequence. This flaw, classified under CWE-1289 (Improper Validation of Unsafe Equivalence in Input), results in a failure to intercept and inspect a limited volume of network traffic during the initial boot or application start phase. While the attack vector is listed as network-based, exploitation typically requires specific timing or user interaction (UI:R) to trigger the uninspected traffic flow. Zscaler has addressed this in updated versions of the Client Connector.
Affected products
- Zscaler Client Connector 4.7 before 4.7.0.141, 4.8 before 4.8.0.63
Timeline
- 2026-03-31: disclosed
- 2026-03-31: advisory