{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-18577", "assignerOrgId": "a5532a13-c4dd-4202-bef1-e0b8f2f8d12b", "state": "PUBLISHED", "assignerShortName": "N-able", "dateReserved": "2026-08-02T13:40:02.350Z", "datePublished": "2026-08-02T22:06:18.296Z", "dateUpdated": "2026-08-04T13:32:51.312Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "a5532a13-c4dd-4202-bef1-e0b8f2f8d12b", "shortName": "N-able", "dateUpdated": "2026-08-02T22:06:18.296Z" }, "title": "Incomplete patch leads to administrative account takeover", "datePublic": "2026-08-02T21:44:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-288", "description": "CWE-288 Authentication bypass using an alternate path or channel", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-115", "descriptions": [ { "lang": "en", "value": "CAPEC-115 Authentication Bypass" } ] } ], "affected": [ { "vendor": "N-able", "product": "N-central", "versions": [ { "status": "affected", "version": "0", "lessThanOrEqual": "2026.3", "versionType": "custom" }, { "status": "unaffected", "version": "2026.3.1.7", "versionType": "custom" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "

An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1

" } ] } ], "references": [ { "url": "https://documentation.n-able.com/N-central/Release_Notes/GA/Content/N-central_2026.3_HF1_Release_Notes.htm" }, { "url": "https://status.n-able.com/2026/08/02/n-central-2026-3-hotfix-1-mitigation-for-cve-2026-18577/" }, { "url": "https://www.cve.org/CVERecord?id=CVE-2026-18556" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "LOW", "exploitMaturity": "ATTACKED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.2, "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/E:A" } } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.4" } }, "adp": [ { "references": [ { "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-18577", "tags": [ "government-resource" ] }, { "url": "https://www.n-able.com/blog/n-central-security-update-august-2-2026", "tags": [ "vendor-advisory" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-04T03:56:18.454615Z", "id": "CVE-2026-18577", "options": [ { "Exploitation": "active" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } }, { "other": { "type": "kev", "content": { "dateAdded": "2026-08-03", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-18577" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-04T13:32:51.312Z" } } ] } }