High 8.2Known exploited (CISA KEV)Published Aug 1, 2026

CVE-2026-18556Unauthenticated administrative account takeover

Updated under an hour ago (2026-10-19 05:50 UTC)

Does this affect you?

It affects N-able N-central and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Aug 4, 2026; federal agencies had to remediate by Aug 7, 2026. Treat that date as your deadline.

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Exploited in the last 30 days

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.

CVSS: 8.2 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-288
Known exploited: Added to CISA KEV Aug 4, 2026; federal remediation due Aug 7, 2026Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
EPSS (exploitation in the next 30 days): 7.88% (percentile 95)
Assigned by: N-able
NVD analysis: Analyzed
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

N-able N-central n_able:n_central (from the name)	through 2026.1	CNA record
n-able n-central n-able:n-central	through 2026.1	NVD

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.