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CVE-2026-18556

HighCVSS 7.4/10Known exploited (CISA KEV)Last modified Oct 23, 2026

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.

Metrics

CVSS 3.1 7.4/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

Affected software

Vendor	Product	Versions
N-able	N-central	<= 2026.1

References

https://uptime.n-able.com/Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-18556US Government Resource
https://www.n-able.com/blog/n-central-security-update-august-2-2026Vendor Advisory

Timeline

Published: Aug 1, 2026
Last modified: Oct 23, 2026
Added to CISA KEV: Aug 4, 2026
NVD status: Analyzed

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