Vulnerability details
CVE-2026-18577
Actively exploited
N-able N-central
Incomplete patch leads to administrative account takeover
CVSS 4.0
8.2High
Official description
An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.2High | 4.0 | CVEProject cvelistV5 (CNA) (N-able) | CVSS: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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| N-able | N-central | v ≤ 2026.3 | CVEProject cvelistV5 (CNA) |
References and advisories
5- 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 government-resource
- https://www.n-able.com/blog/n-central-security-update-august-2-2026 vendor-advisory
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Details
- Published
- 2026-08-03
- Last updated
- 2026-08-04
- State
- Published
- Assigner (CNA)
- N-able
- Kolun priority
- 77 · High
CISA KEV catalog
- Date added
- 2026-08-03
- Due date
- 2026-08-06
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
14.62%
Probability of exploitation in 30 days
96.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-288Authentication bypass using an alternate path or channel