Android ZCC denial of service

Answer in brief

CVE-2026-59570 records a Unknown severity vulnerability in Android ZCC denial of service. The current sources do not mark it as known exploited. The current feed maps Zscaler/Client Connector (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 14, 2026Updated Sep 14, 2026Source checked Sep 14, 2026First seen by HOL Sep 14, 2026Material review Sep 14, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Zscaler/Client Connector (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Zscaler/Client Connectorgeneric	>=0 <Android: 4.2.0.152 \|\| >=0 <ChromeOS: 4.2.0.152	Android: 4.2.0.152, ChromeOS: 4.2.0.152

Recommended response

Check inventory. Check lockfiles and deployed manifests for Zscaler/Client Connector.
Review the reported fix. Update Zscaler/Client Connector to Android: 4.2.0.152 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 14, 2026

Sources and claim methodology

Source referencehelp.zscaler.com

Upstream source description

On affected versions of Zscaler client connector, a pre-installed peer app can tear down the Zscaler tunnel, force user logout, and toggle packet capture.

Quoted source text, attributed separately from HOL analysis.