{"id":"CVE-2025-54983","aliases":["EUVD-2025-119999","GHSA-x3hh-fgq4-6rqr"],"status":"published","title":"Health check port on ZCC allows tunnel bypass","description":"A health check port on Zscaler Client Connector on Windows, versions 4.6 \u003c  4.6.0.216 and 4.7 \u003c 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.","severity":{"version":"3.1","score":5.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00132,"percentile":0.02829,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-772"],"published":"2025-11-12T03:07:39Z","modified":"2026-10-18T20:10:00Z","products":[{"vendor":"zscaler","product":"zscaler client connector"}],"references":[{"url":"https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2025"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54983"},{"url":"https://github.com/advisories/GHSA-x3hh-fgq4-6rqr"}],"sources":{"cve":[{"id":"CVE-2025-54983","title":"Health check port on ZCC allows tunnel bypass","description":"A health check port on Zscaler Client Connector on Windows, versions 4.6 \u003c  4.6.0.216 and 4.7 \u003c 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.","status":"published","published":"2025-11-12T03:07:39.531Z","modified":"2025-11-12T18:18:36.813Z","cvss":[{"version":"3.1","score":5.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T14:32:27.932735Z"}],"euvd":[{"id":"EUVD-2025-119999","description":"A health check port on Zscaler Client Connector on Windows, versions 4.6 \u003c  4.6.0.216 and 4.7 \u003c 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.","status":"published","published":"2025-11-12T03:07:39Z","modified":"2025-11-12T18:18:36Z","cvss":[{"version":"3.1","score":5.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:49:18.397537Z"}],"ghsa":[{"id":"GHSA-x3hh-fgq4-6rqr","title":"A health check port on Zscaler Client Connector on Windows, versions 4.6 \u003c  4.6.0.216 and 4.7 \u003c 4...","description":"A health check port on Zscaler Client Connector on Windows, versions 4.6 \u003c  4.6.0.216 and 4.7 \u003c 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.","status":"published","published":"2025-11-12T06:30:24Z","modified":"2025-11-12T06:30:24Z","cvss":[{"version":"3.1","score":5.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T15:04:45.782037Z"}],"nvd":[{"id":"CVE-2025-54983","description":"A health check port on Zscaler Client Connector on Windows, versions 4.6 \u003c  4.6.0.216 and 4.7 \u003c 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.","status":"published","published":"2025-11-12T04:15:41.987Z","modified":"2026-10-18T20:10:00.11Z","cvss":[{"version":"3.1","score":5.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T14:11:43.650381Z"}]}}