CVE-2026-78628

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-78628", "assignerOrgId": "59b22baa-87b2-4371-8e4a-e080df12f74a", "state": "PUBLISHED", "assignerShortName": "Okta", "dateReserved": "2026-08-24T22:04:00.475Z", "datePublished": "2026-10-13T20:07:37.375Z", "dateUpdated": "2026-10-14T19:27:28.784Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "59b22baa-87b2-4371-8e4a-e080df12f74a", "shortName": "Okta", "dateUpdated": "2026-10-13T20:17:36.454Z"}, "title": "Improper Input Validation in the Okta Credential Provider for Windows", "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Input Validation", "cweId": "CWE-20"}]}, {"descriptions": [{"lang": "en", "description": "Out-of-bounds Read", "cweId": "CWE-125"}]}, {"descriptions": [{"lang": "en", "description": "Out-of-bounds Write", "cweId": "CWE-787"}]}], "affected": [{"vendor": "Okta", "product": "Okta Credential Provider for Windows", "versions": [{"version": "0", "status": "affected", "lessThan": "1.4.6.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Okta Credential Provider for Windows does not validate a serialized credential buffer before interpreting it as a Kerberos logon structure. The buffer size and packed string offsets are not checked. Processing a malformed buffer can cause the credential provider process to terminate unexpectedly or lead to out-of-bounds memory reads and writes, which may result in the disclosure of adjacent process memory into local system logs."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "baseScore": 6, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}}], "solutions": [{"lang": "en", "value": "Upgrade the Okta Credential Provider for Windows to version 1.4.6.0 or greater."}], "references": [{"url": "https://trust.okta.com/security-advisories/improper-input-validation-in-the-okta-credential-provider-for-windows-cve-2026-78628"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-14T19:27:16.578491Z", "id": "CVE-2026-78628", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-14T19:27:28.784Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-78628", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-14T19:27:16.578491Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-14T19:27:25.202Z"}}], "cna": {"title": "Improper Input Validation in the Okta Credential Provider for Windows", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "Okta", "product": "Okta Credential Provider for Windows", "versions": [{"status": "affected", "version": "0", "lessThan": "1.4.6.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Upgrade the Okta Credential Provider for Windows to version 1.4.6.0 or greater."}], "references": [{"url": "https://trust.okta.com/security-advisories/improper-input-validation-in-the-okta-credential-provider-for-windows-cve-2026-78628"}], "descriptions": [{"lang": "en", "value": "The Okta Credential Provider for Windows does not validate a serialized credential buffer before interpreting it as a Kerberos logon structure. The buffer size and packed string offsets are not checked. Processing a malformed buffer can cause the credential provider process to terminate unexpectedly or lead to out-of-bounds memory reads and writes, which may result in the disclosure of adjacent process memory into local system logs."}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-20", "description": "Improper Input Validation"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-125", "description": "Out-of-bounds Read"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-787", "description": "Out-of-bounds Write"}]}], "providerMetadata": {"orgId": "59b22baa-87b2-4371-8e4a-e080df12f74a", "shortName": "Okta", "dateUpdated": "2026-10-13T20:17:36.454Z"}}}, "cveMetadata": {"cveId": "CVE-2026-78628", "state": "PUBLISHED", "dateUpdated": "2026-10-14T19:27:28.784Z", "dateReserved": "2026-08-24T22:04:00.475Z", "assignerOrgId": "59b22baa-87b2-4371-8e4a-e080df12f74a", "datePublished": "2026-10-13T20:07:37.375Z", "assignerShortName": "Okta"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Okta Credential Provider for Windows", "vendor": "Okta", "versions": [{"lessThan": "1.4.6.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "psirt@okta.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Okta Credential Provider for Windows does not validate a serialized credential buffer before interpreting it as a Kerberos logon structure. The buffer size and packed string offsets are not checked. Processing a malformed buffer can cause the credential provider process to terminate unexpectedly or lead to out-of-bounds memory reads and writes, which may result in the disclosure of adjacent process memory into local system logs."}], "id": "CVE-2026-78628", "lastModified": "2026-10-15T20:38:04.303", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.2, "source": "psirt@okta.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-78628", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-14T19:27:16.578491Z", "version": "2.0.3"}}]}, "published": "2026-10-13T21:18:21.630", "references": [{"source": "psirt@okta.com", "url": "https://trust.okta.com/security-advisories/improper-input-validation-in-the-okta-credential-provider-for-windows-cve-2026-78628"}], "sourceIdentifier": "psirt@okta.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-125"}, {"lang": "en", "value": "CWE-787"}], "source": "psirt@okta.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.4.6.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Okta Credential Provider for Windows", "source": "cna", "vendor": "Okta"}, "product": "okta_credential_provider_for_windows", "vendor": "okta"}], "created": "2026-10-14T21:00:07.658724+00:00", "updated": "2026-10-19T13:09:54.120590+00:00", "vendors": ["okta", "okta$PRODUCT$okta_credential_provider_for_windows"]}