{"id":"CVE-2026-18577","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-18577","generatedAt":"2026-10-28T04:34:31.916Z","title":"N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability","description":"An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1","published":"2026-08-02T23:16:26.000Z","lastModified":"2026-10-23T22:10:00.000Z","status":"Analyzed","sourceIdentifier":"a5532a13-c4dd-4202-bef1-e0b8f2f8d12b","cvss":{"version":"4.0","score":8.2,"severity":"HIGH","vector":"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-288"],"affected":["n-able/n-central"],"epss":{"score":0.14622,"percentile":0.96637,"date":"2026-10-27","history":[{"date":"2026-09-24","score":0.14622,"percentile":0.9653}]},"kev":{"listed":true,"dateAdded":"2026-08-03","dueDate":"2026-08-06","knownRansomwareCampaignUse":"Unknown","notes":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.\nhttps://documentation.n-able.com/N-central/Release_Notes/GA/Content/N-central_2026.3_HF1_Release_Notes.htm ; https://status.n-able.com/2026/08/02/n-central-2026-3-hotfix-1-mitigation-for-cve-2026-18577/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-18577"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 6 August 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-24T00:00:00.000Z","detail":{"to":0.14622,"from":0.54068,"percentile":0.9653},"summary":"EPSS moved from 54.1% to 14.6% probability of exploitation in the next thirty days."}],"references":[{"url":"https://documentation.n-able.com/N-central/Release_Notes/GA/Content/N-central_2026.3_HF1_Release_Notes.htm","tags":["Patch","Release Notes"],"source":"a5532a13-c4dd-4202-bef1-e0b8f2f8d12b"},{"url":"https://status.n-able.com/2026/08/02/n-central-2026-3-hotfix-1-mitigation-for-cve-2026-18577/","tags":["Release Notes"],"source":"a5532a13-c4dd-4202-bef1-e0b8f2f8d12b"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-18556","tags":["VDB Entry"],"source":"a5532a13-c4dd-4202-bef1-e0b8f2f8d12b"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-18577","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.n-able.com/blog/n-central-security-update-august-2-2026","tags":["Vendor Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-18577","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}