CVE-2026-59565

{"id": "CVE-2026-59565", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59565", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-24T15:18:07.595772Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@zscaler.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "cve@zscaler.com", "affectedData": [{"vendor": "Zscaler", "product": "Client Connector", "versions": [{"status": "affected", "version": "0", "lessThan": "Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372", "versionType": "custom"}], "platforms": ["Windows"], "defaultStatus": "affected"}]}], "published": "2026-08-24T14:16:55.830", "references": [{"url": "https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026", "source": "cve@zscaler.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "cve@zscaler.com", "description": [{"lang": "en", "value": "CWE-229"}]}], "descriptions": [{"lang": "en", "value": "A remotely exploitable buffer overflow bug can cause a local and kernel denial-of-service attack on affected versions of Zscaler Client Connector on Windows."}], "lastModified": "2026-08-28T18:39:48.167", "sourceIdentifier": "cve@zscaler.com"}