CVE-2026-25687

{"id": "CVE-2026-25687", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-25687", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-09-14T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@zscaler.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}]}, "affected": [{"source": "cve@zscaler.com", "affectedData": [{"vendor": "Zscaler", "product": "Client Connector", "versions": [{"status": "affected", "version": "4.6", "lessThan": "4.6.0.486", "versionType": "custom"}, {"status": "affected", "version": "4.7", "lessThan": "4.7.0.350", "versionType": "custom"}, {"status": "affected", "version": "4.8", "lessThan": "4.8.0.267", "versionType": "custom"}, {"status": "affected", "version": "4.9", "lessThan": "4.9.0.412", "versionType": "custom"}], "platforms": ["Windows"], "defaultStatus": "unaffected"}]}], "published": "2026-09-14T15:17:05.090", "references": [{"url": "https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026", "source": "cve@zscaler.com"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "cve@zscaler.com", "description": [{"lang": "en", "value": "CWE-366"}]}], "descriptions": [{"lang": "en", "value": "A race condition in the ZPA tunnel handler of affected versions of Zscaler Client Connector (ZCC) allows a heap corruption, resulting in a denial of service (client crash) and potentially arbitrary code execution in the context of the ZCC process."}], "lastModified": "2026-09-15T04:18:03.757", "sourceIdentifier": "cve@zscaler.com"}