Name: CVE-2026-18577: Authentication Bypass Using an Alternate Path or Channel
Creator: Rapid7
Published: 2026-08-02T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-18577, CWE-288, Exploited in the Wild, CISA KEV Exploit, Rapid7 Critical, CVSS 8.1, EPSS 0.14622, CISA KEV

Emergent ThreatCVE-2026-18577:N-able N-central Authentication Bypass Exploited in the WildBlog ↗

An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1

CVSS Details

CVSS 4.0 Base Score: 8.2 (HIGH)
CVSS 4.0 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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
CVSS 3.1 Base Score: 8.1
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
N Able N Central	—	Upgrade to the latest version of N-Central	Aug 4, 2026	Aug 2, 2026

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