CVE-2026-18577

Analyzed Analyzed - Analysis Complete

Authentication Bypass in N-central Versions through 2026.3.1

Publication date: 2026-08-02

Last updated on: 2026-08-04

Assigner: N-able

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-02

Last Modified

2026-08-04

Generated

2026-08-23

AI Q&A

2026-08-03

EPSS Evaluated

2026-08-21

NVD

CVE-2026-18577

EUVD

EUVD-2026-52010

Affected Vendors & Products

Vendor	Product	Version / Range
n-able	n-central	to 2026.3 (exc)
n-able	n-central	2026.3

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-288	The product requires authentication, but the product has an alternate path or channel that does not require authentication.

Attack-Flow Graph

Executive Summary

This vulnerability is an incomplete patch for CVE-2026-18556 that allows attackers to bypass authentication and take over accounts in N-central software versions up to 2026.3.1.

Detection Guidance

Detection methods are not specified in the provided CVE details. Focus on verifying N-central versions prior to 2026.3.1 and checking for unauthorized access or account changes.

Impact Analysis

Attackers could gain unauthorized access to systems, steal sensitive data, or perform actions on behalf of legitimate users without proper authentication.

Compliance Impact

The vulnerability allows authentication bypass and account takeover, which could lead to unauthorized access to sensitive data. This may violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data privacy) by exposing personal or protected health information.

Mitigation Strategies

Update N-central to the latest version beyond 2026.3.1 to ensure the complete patch for CVE-2026-18556 is applied and prevents authentication bypass.

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