Authentication bypass using an alternate path or channel vulnerability in N-able N-central allows Authentication Bypass. This issue affects N-central: through 2026.1.

Metrics

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact total

Affected Vendors & Products

Vendors Products
N-able
  • N-central

No data.

No data.

References
Link Providers
https://uptime.n-able.com/ cve-icon
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-18556 cve-icon
https://www.n-able.com/blog/n-central-security-update-august-2-2026 cve-icon
History

Tue, 04 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

 ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 04 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-08-04T00:00:00+00:00', 'dueDate': '2026-08-07T00:00:00+00:00'}

Tue, 04 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

 ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 03 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sat, 01 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared N-able
N-able n-central
Vendors & Products N-able
N-able n-central

Sat, 01 Aug 2026 20:15:00 +0000

Type Values Removed Values Added
Description Authentication bypass using an alternate path or channel vulnerability in N-able N-central allows Authentication Bypass. This issue affects N-central: through 2026.1.
Title Unauthenticated administrative account takeover
Weaknesses CWE-288
References
Metrics cvssV4_0

{'score': 8.2, 'vector': '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: N-able

Published: 2026-08-01T19:59:30.913Z

Updated: 2026-08-04T19:58:23.820Z

Reserved: 2026-08-01T11:54:51.376Z

Link: CVE-2026-18556

cve-icon Vulnrichment

Updated: 2026-08-03T16:48:53.443Z

cve-icon NVD

No data.

cve-icon Redhat

No data.