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.
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: 2025-11-12T03:07:39.531Z

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.