CVE-2026-53477

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53477", "assignerOrgId": "c550e75a-17ff-4988-97f0-544cde3820fe", "state": "PUBLISHED", "assignerShortName": "dell", "dateReserved": "2026-06-09T17:04:35.249Z", "datePublished": "2026-08-19T15:04:41.546Z", "dateUpdated": "2026-08-19T20:00:10.002Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "c550e75a-17ff-4988-97f0-544cde3820fe", "shortName": "dell", "dateUpdated": "2026-08-19T15:04:41.546Z"}, "datePublic": "2026-08-18T15:03:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-367", "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition", "type": "CWE"}]}], "affected": [{"vendor": "Dell", "product": "Dell Command Update (DCU)", "versions": [{"status": "affected", "version": "0", "lessThan": "5.7.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Dell Command Update (DCU), versions prior to 5.7.1, contain a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Dell Command Update (DCU), versions prior to 5.7.1, contain a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges."}]}], "references": [{"url": "https://www.dell.com/support/kbdoc/en-us/000501378/dsa-2026-309-security-update-for-dell-command-update-for-multiple-vulnerabilities", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}], "credits": [{"lang": "en", "value": "Dell would like to thank Johannes Hatting for reporting this issue.", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-19T19:54:25.730798Z", "id": "CVE-2026-53477", "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": "2026-08-19T20:00:10.002Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-53477", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-19T19:54:25.730798Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-19T19:55:33.949Z"}}], "cna": {"source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "Dell would like to thank Johannes Hatting for reporting this issue."}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/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"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Dell", "product": "Dell Command Update (DCU)", "versions": [{"status": "affected", "version": "0", "lessThan": "5.7.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "datePublic": "2026-08-18T15:03:00.000Z", "references": [{"url": "https://www.dell.com/support/kbdoc/en-us/000501378/dsa-2026-309-security-update-for-dell-command-update-for-multiple-vulnerabilities", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "Vulnogram 1.0.4"}, "descriptions": [{"lang": "en", "value": "Dell Command Update (DCU), versions prior to 5.7.1, contain a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges.", "supportingMedia": [{"type": "text/html", "value": "Dell Command Update (DCU), versions prior to 5.7.1, contain a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-367", "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition"}]}], "providerMetadata": {"orgId": "c550e75a-17ff-4988-97f0-544cde3820fe", "shortName": "dell", "dateUpdated": "2026-08-19T15:04:41.546Z"}}}, "cveMetadata": {"cveId": "CVE-2026-53477", "state": "PUBLISHED", "dateUpdated": "2026-08-19T20:00:10.002Z", "dateReserved": "2026-06-09T17:04:35.249Z", "assignerOrgId": "c550e75a-17ff-4988-97f0-544cde3820fe", "datePublished": "2026-08-19T15:04:41.546Z", "assignerShortName": "dell"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Dell Command Update (DCU)", "vendor": "Dell", "versions": [{"lessThan": "5.7.1", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security_alert@emc.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:dell:command_update:*:*:*:*:*:*:*:*", "matchCriteriaId": "7E2E7FB7-4672-4144-A076-0F285A53245C", "versionEndExcluding": "5.7.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Dell Command Update (DCU), versions prior to 5.7.1, contain a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges."}], "id": "CVE-2026-53477", "lastModified": "2026-08-21T13:41:04.760", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "security_alert@emc.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53477", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-19T19:54:25.730798Z", "version": "2.0.3"}}]}, "published": "2026-08-19T15:17:10.417", "references": [{"source": "security_alert@emc.com", "tags": ["Vendor Advisory"], "url": "https://www.dell.com/support/kbdoc/en-us/000501378/dsa-2026-309-security-update-for-dell-command-update-for-multiple-vulnerabilities"}], "sourceIdentifier": "security_alert@emc.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "security_alert@emc.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.7.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Dell Command Update (DCU)", "source": "cna", "vendor": "Dell"}, "product": "dell_command_update_(dcu)", "vendor": "dell"}], "created": "2026-08-19T17:45:03.228444+00:00", "title": "Local Privilege Escalation via TOCTOU Race Condition in Dell Command Update", "updated": "2026-08-20T15:30:03.765991+00:00", "vendors": ["dell", "dell$PRODUCT$dell_command_update_(dcu)"]}