CVE-2026-18577 KEV
8.1
HIGH · CVSS 3.1 · EPSS 14.6% (pctl 97)
Patch first
On CISA KEV — known exploited in the wild, due 2026-08-06.
Description
An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1
Scoring
| CVSS | 8.1 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 14.62% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-288 |
| On CISA KEV | yes — remediate by 2026-08-06 |
| Public exploit | none known |
| Published | 2026-08-02 |
| Last modified | 2026-08-04 |
CISA KEV
| Name | N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability |
|---|---|
| Added | 2026-08-03 |
| Due | 2026-08-06 |
| Vendor / product | N-able / N-central |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| 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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