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CVE-2025-54983

Health check port on ZCC allows tunnel bypass

CVSS 5.2 MEDIUMEPSS 0.1%CWE-772
Vexday Risk Score
13Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 5.2EPSS 0.1%KEV nãoPoC Nuclei Metasploit Patch
Ciclo de vida
12 nov 2025Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
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:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

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