Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-54983— Health check port on ZCC allows tunnel bypass

Quick assessment

Affected
Zscaler Zscaler Client Connector
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zscaler Client Connector是Zscaler公司的一个轻量级代理。 Zscaler Client Connector Windows 4.6版本至4.6.0.216之前版本和4.7版本至4.7.0.47之前版本存在安全漏洞，该漏洞源于健康检查端口未释放，可能导致流量绕过ZCC转发控制。

CVSS 5.2 · Medium EPSS 0.12% · P2
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-54983

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Health check port on ZCC allows tunnel bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对已超过有效生命周期的资源丧失索引
Source: CVE Program / CVE List V5
Vulnerability Title
Zscaler Client Connector 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zscaler Client Connector是Zscaler公司的一个轻量级代理。 Zscaler Client Connector Windows 4.6版本至4.6.0.216之前版本和4.7版本至4.7.0.47之前版本存在安全漏洞，该漏洞源于健康检查端口未释放，可能导致流量绕过ZCC转发控制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Zscaler Zscaler Client Connector 4.6 ~ 4.6.0.216 -

II. Public POCs for CVE-2025-54983

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-54983

请登录查看更多情报信息。

IV. Related Vulnerabilities

Same product: Zscaler Client Connector
Same vendor: Zscaler
Same weakness: CWE-772

V. Comments for CVE-2025-54983

No comments yet

Leave a comment