CVE-2026-18577

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

CVSS 4.0

8.2CVSS: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

CVSS 3.1

8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

15% chance of exploitation in the next 30 days; higher than 96% of CVEs (scores of 2026-10-25)

CISA KEV

listed 2026-08-03, due 2026-08-06

CWE

CWE-288

Published

2026-08-02

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

Affected

• n-able:n-central

References

• https://documentation.n-able.com/N-central/Release_Notes/GA/Content/N-central_2026.3_HF1_Release_Notes.htm
• https://status.n-able.com/2026/08/02/n-central-2026-3-hotfix-1-mitigation-for-cve-2026-18577/
• https://www.cve.org/CVERecord?id=CVE-2026-18556
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-18577
• https://www.n-able.com/blog/n-central-security-update-august-2-2026

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