KEV Entry

CVE-2026-18577

Known Exploited Vulnerability Entry CISA

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Entry Details
Confirmed Exploited

CVE-2026-18577

2026-08-03 00:00 UTC

Timestamps

2026-08-03

2026-08-03

Scope

N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability | Affected: N-able / N-central | Description: N-able N-central contains an authentication bypass using an alternate path or channel allows for authentication bypass and account takeover in N-central. This vulnerability is the result of an incomplete patch for CVE-2026-18556. | Required action: 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. | Due date: 2026-08-06 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://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

References
  • {'id': 'CVE-2026-18577', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-18577'}

2038f5ab-2fba-4a37-b761-3d116633c805

CISA
405284c2-e461-4670-8979-7fd2c9755a60

2026-08-03 20:00 UTC

2026-08-03 20:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-288"
  ],
  "date_added": "2026-08-03",
  "due_date": "2026-08-06",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "N-central",
  "vendorProject": "N-able",
  "vulnerabilityName": "N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability"
}
 -
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