{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18556","assignerOrgId":"a5532a13-c4dd-4202-bef1-e0b8f2f8d12b","state":"PUBLISHED","assignerShortName":"N-able","dateReserved":"2026-08-01T11:54:51.376Z","datePublished":"2026-08-01T19:59:30.913Z","dateUpdated":"2026-08-05T03:56:07.447Z"},"containers":{"cna":{"providerMetadata":{"orgId":"a5532a13-c4dd-4202-bef1-e0b8f2f8d12b","shortName":"N-able","dateUpdated":"2026-08-01T19:59:30.913Z"},"title":"Unauthenticated administrative account takeover","datePublic":"2026-08-01T19:56:00.000Z","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":"2026.1","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Authentication bypass using an alternate path or channel vulnerability in N-able N-central allows Authentication Bypass.\n\nThis issue affects N-central: through 2026.1.","supportingMedia":[{"type":"text/html","base64":false,"value":"Authentication bypass using an alternate path or channel vulnerability in N-able N-central allows Authentication Bypass.<p>This issue affects N-central: through 2026.1.</p>"}]}],"references":[{"url":"https://uptime.n-able.com/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","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:N/SI:N/SA:N"}}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-04T00:00:00+00:00","options":[{"Exploitation":"active"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-18556"}}},{"other":{"type":"kev","content":{"dateAdded":"2026-08-04","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-18556"}}}],"references":[{"url":"https://www.n-able.com/blog/n-central-security-update-august-2-2026","tags":["vendor-advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-18556","tags":["government-resource"]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-05T03:56:07.447Z"},"timeline":[{"time":"2026-08-04T00:00:00.000Z","lang":"en","value":"CVE-2026-18556 added to CISA KEV"}]}]}}