CVE-2025-54983 — Missing Release of Resource after Effective Lifetime in Client Connector

CWE-772 — Missing Release of Resource after Effective Lifetime3 documents3 sources
Severity
5.2MEDIUMNVD
EPSS
0.0%
top 97.75%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Zscaler Client Connector
Timeline
PublishedNov 12

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NExploitability: 2.0 | Impact: 2.7

Affected Packages1 packages

▶CVEListV5zscaler/zscaler_client_connector4.6 — 4.6.0.216+1

🔴Vulnerability Details

2
CVEList
Health check port on ZCC allows tunnel bypass↗2025-11-12
▶
GHSA
GHSA-x3hh-fgq4-6rqr: A health check port on Zscaler Client Connector on Windows, versions 4↗2025-11-12
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CVE-2025-54983 — Zscaler Client Connector vulnerability | cvebase