# CVE-2026-59566: Local denial-of-service

> CVE-2026-59566: Local denial-of-service. CVSS 8.4 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-59566
Last updated: 2026-10-12T15:10:00Z

- Published: 2026-08-24 13:41 UTC · Updated: 2026-10-12 15:10 UTC · Assigner: Zscaler
- CVSS: 8.4 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 0.18%, 7th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-229

## Description

A locally exploitable buffer overflow bug can cause a local denial-of-service attack on affected versions of Zscaler Client Connector on Android and ChromeOS.

## Affected vendors and products

- Zscaler: Client Connector

## Tracked companies

- [Zscaler](https://rewindex.com/company/zscaler.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-59566)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-59566)
- [https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026](https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-59566 · Markdown: https://rewindex.com/cve/CVE-2026-59566.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-59566 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:52.212Z