A health check port on Zscaler Client Connector on Windows, versions 4.6 < 4.6.0.216 and 4.7 < 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 12 Nov 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 12 Nov 2025 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
Zscaler
Zscaler client Connector
Vendors & Products Microsoft
Microsoft windows
Zscaler
Zscaler client Connector

Wed, 12 Nov 2025 03:30:00 +0000

Type Values Removed Values Added
Description A health check port on Zscaler Client Connector on Windows, versions 4.6 < 4.6.0.216 and 4.7 < 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.
Title Health check port on ZCC allows tunnel bypass
Weaknesses CWE-772
References
Metrics cvssV3_1

{'score': 5.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Zscaler

Published:

Updated: 2025-11-12T18:18:36.813Z

Reserved: 2025-08-04T14:51:53.367Z

Link: CVE-2025-54983

cve-icon Vulnrichment

Updated: 2025-11-12T18:18:31.937Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-11-12T04:15:41.987

Modified: 2025-11-12T16:19:12.850

Link: CVE-2025-54983

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-11-12T12:36:27Z