- High 8.2
- Known exploited (CISA KEV)
CVE-2026-18556
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.
Scores
The facts
- Published
- 1 August 2026
- Last changed
- 5 August 2026
- NVD status
- Analyzed
- Severity
- High, CVSS 8.2 out of 10 (version 4.0)
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R… - Weakness
- Affects
- n-able n-central
- Known exploited
- Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 4 August 2026.
- EPSS
- 7.9% chance of exploitation activity in the next 30 days (percentile 95).
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