{
  "_links": {
    "capec": {
      "href": "/api/v1/vulnerability/cve-2026-18577/capec"
    },
    "cvss": {
      "href": "/api/v1/vulnerability/cve-2026-18577/cvss"
    },
    "cwe": {
      "href": "/api/v1/vulnerability/cve-2026-18577/cwe"
    },
    "enrichment": {
      "href": "/api/v1/vulnerability/cve-2026-18577/enrichment"
    },
    "gcve": {
      "href": "/api/v1/vulnerability/cve-2026-18577/gcve"
    },
    "self": {
      "href": "/api/v1/vulnerability/cve-2026-18577"
    },
    "sightings": {
      "href": "/api/v1/sightings/cve-2026-18577"
    }
  },
  "data": {
    "nuclei": true,
    "nuclei_template": "http/cves/2026/CVE-2026-18577.yaml",
    "nuclei_template_severity": "critical",
    "nuclei_template_yaml": "id: CVE-2026-18577\n\ninfo:\n  name: N-able N-central < 2026.3.1.10 - Authentication Bypass\n  author: patrick-threatmate\n  severity: critical\n  description: |\n    N-able N-central versions through 2026.3.1 contain an authentication bypass that lets a remote unauthenticated attacker take over an administrator account and gain full control of the N-central server. CVE-2026-18577 is a bypass of the incomplete fix for CVE-2026-18556, so the 2026.3.1 Hotfix 1 build (2026.3.1.7) does not fully remediate it. Hotfix 2 (2026.3.1.10) supersedes Hotfix 1 and is the first fully fixed 2026.3 build.\n  impact: |\n    Unauthenticated attackers gain administrative access to the RMM console and can reach every managed endpoint through Take Control. Exploited in the wild and added to the CISA Known\n  remediation: |\n    Upgrade on-premises N-central to 2026.3.1.10 (2026.3 Hotfix 2) or to a later release line (2026.4 or newer). Applying Hotfix 1 (2026.3.1.7) alone is not sufficient. N-able hosted environments were mitigated by the vendor and need no customer action.\n  reference:\n    - https://www.n-able.com/blog/n-central-security-update-august-6-2026\n    - https://status.n-able.com/2026/08/06/n-central-2026-3-hotfix-2-additional-mitigation-for-cve-2026-18577/\n    - https://www.rapid7.com/blog/post/etr-cve-2026-18577-n-able-n-central-authentication-bypass-exploited-in-the-wild/\n    - https://www.huntress.com/blog/n-able-vulnerability-exploitation\n    - https://nvd.nist.gov/vuln/detail/CVE-2026-18577\n    - https://nvd.nist.gov/vuln/detail/CVE-2026-18556\n  classification:\n    cvss-metrics: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\n    cvss-score: 8.1\n    cve-id: CVE-2026-18577\n    epss-score: 0.54068\n    epss-percentile: 0.98957\n    cwe-id: CWE-288\n    cpe: cpe:2.3:a:n-able:n-central:*:*:*:*:*:*:*:*\n  metadata:\n    max-request: 1\n    vendor: n-able\n    product: n-central\n    shodan-query: http.title:\"N-central Login\"\n    fofa-query: title=\"N-central Login\"\n  tags: cve,cve2026,n-able,ncentral,auth-bypass,kev,passive,vkev\n\nhttp:\n  - method: GET\n    path:\n      - \"{{BaseURL}}/login\"\n\n    matchers-condition: and\n    matchers:\n      - type: word\n        condition: or\n        words:\n          - 'class=\"ncentral\"'\n          - 'ncentralVersion'\n\n      - type: dsl\n        dsl:\n          - compare_versions(version, '< 2026.3.1.10')\n\n    extractors:\n      - type: regex\n        name: version\n        internal: true\n        group: 1\n        regex:\n          - 'ncentralVersion:\\s*\"(202\\d+\\.\\d+\\.\\d+\\.\\d+)\"'\n\n      - type: regex\n        name: ncentral_version\n        group: 1\n        regex:\n          - 'ncentralVersion:\\s*\"(202\\d+\\.\\d+\\.\\d+\\.\\d+)\"'\n# digest: 4b0a00483046022100d67cca4b1ee39d2afa35f484b4204b3f2d9c0cb669ca9a25f664ac703272cb830221009944e5d91b0ac419d4482c3da0a257d992a3b64c428715d4ddc8c043bc04b597:922c64590222798bb761d5b6d8e72950"
  },
  "source": "nuclei",
  "vuln_id": "cve-2026-18577"
}