SecuriTricks - CVE-2025-54983

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.

Product(s) Impacted

Vendor	Product	Versions
Zscaler	Zscaler Client Connector	4.6.0-<4.6.0.216, 4.7.0-<4.7.0.47

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-772

Missing Release of Resource after Effective Lifetime

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	zscaler	zscaler_client_connector	4.6.0-<4.6.0.216	/	/	/	/	windows	/	/
a	zscaler	zscaler_client_connector	4.7.0-<4.7.0.47	/	/	/	/	windows	/	/

References

https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2025

CVSS Score

5.2 / 10

CVSS Data - 3.1

Attack Vector: LOCAL
Attack Complexity: LOW
Privileges Required: LOW
Scope: CHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

View Vector String

Timeline

Published: Nov. 12, 2025, 4:15 a.m.
Last Modified: Nov. 12, 2025, 4:19 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

cve@zscaler.com

CVE-2025-54983