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TI-2026-42532 Aliases CVE-2026-59570GHSA-cj79-f7p8-r2fv

Android ZCC denial of service

Priority LOW 32CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00132 2nd percentileScored 2026-11-07
Fix Fixed Client Connector (Zscaler): Android: 4.2.0.152, ChromeOS: 4.2.0.152

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ZscalerClient Connectorbefore Android: 4.2.0.152; before ChromeOS: 4.2.0.152Android: 4.2.0.152, ChromeOS: 4.2.0.152Patch availableCNA
  • Client Connector VendorZscaler Affected before Android: 4.2.0.152; before ChromeOS: 4.2.0.152 Fixed in Android: 4.2.0.152, ChromeOS: 4.2.0.152 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:*:*:*——Zscaler
  • cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:*:*:* Versions — — ·Zscaler

Remediation

  • Fix · CNA Client Connector (Zscaler) Fixed in Android: 4.2.0.152, ChromeOS: 4.2.0.152

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Zscaler Client Connector Android: 4.2.0.152, ChromeOS: 4.2.0.152

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-42531 Android ZCC VPN API method privilege escalationPriority LOW 36
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59570
  2. 2026-10-03 Alias added: GHSA-cj79-f7p8-r2fv

References

Other 1

  • TI-2023-22133 Inappropriate file type control in Zscaler Proxy versions 3.6.1.25 and prior allows local… CVSS 3.1MEDIUM 5.5
  • TI-2026-42530 Remote code execution in Zscaler Client Connector CVSS 3.1CRITICAL 9.1
  • TI-2026-42526 Authentication bypass between ZCC and client connector portal CVSS 3.1CRITICAL 9.1
  • TI-2020-09334 The Zscaler Client Connector for Windows prior to 2.1.2.74 had a stack based buffer… CVSS 3.1CRITICAL 9.8
  • TI-2024-15528 Local Privilege Escalation via lack of input validation CVSS 3.1CRITICAL 9.8
  • TI-2025-34691 SAML 2.0 Public Key Validation Issue CVSS 3.1CRITICAL 9.6
See all 58 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences