CVE-2026-18556

HIGHCVSS 7.4Known Exploited

CISA Known Exploited Vulnerability

https://uptime.n-able.com/ ; 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-2026-18556

Remediation deadline: August 7, 2026

Description

N-able N-central contains an authentication bypass using an alternate path or channel that allows for authentication bypass.

Timeline

Published:August 1st, 2026 8:16 PM

Last modified:August 5th, 2026 5:16 AM

Added to KEV:August 4th, 2026

CVSS Scoring

CVSS v3: 7.4 (HIGH)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Software

From NVD CPE configuration data

Vendors

n-able

Products

n-central

Weaknesses (CWE)

CWE-288

References & Reports

Advisories, patches, and third-party reports

Source: NIST NVD · Data may lag official sources by up to one minute