# CVE-2026-18577: Incomplete patch leads to administrative account takeover

> CVE-2026-18577: Incomplete patch leads to administrative account takeover. CVSS 8.1 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2026-18577
Last updated: 2026-10-23T22:10:00Z

- Published: 2026-08-02 22:06 UTC · Updated: 2026-10-23 22:10 UTC · Assigner: N-able
- CVSS: 8.1 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 14.6%, 97th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2026-08-03, federal due date 2026-08-06, ransomware use: Unknown
- CWE: CWE-288

## Description

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

## CISA required action

Apply 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.

## Affected vendors and products

- N-able: N-central

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-18577)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-18577)
- [https://documentation.n-able.com/N-central/Release\_Notes/GA/Content/N-central\_2026.3\_HF1\_Release\_Notes.htm](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://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.cve.org/CVERecord?id=CVE-2026-18556)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-18577 · Markdown: https://rewindex.com/cve/CVE-2026-18577.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-18577 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:04:04.204Z