vulnerability · Mon 03 Aug 2026 · 06:41 UTC
Actively exploitedCVE-2026-18577: N-able N-central Authentication Bypass Exploited in the Wild
Filed UTCSource THN ↗also carried by 1 outlet
Overview On August 2, 2026, N-able published a security advisory for CVE-2026-18577 , an authentication bypass vulnerability affecting N-central that was discovered being exploited in-the-wild after an incomplete fix for an earlier authentication bypass issue, CVE-2026-18556 was disclosed. CVE-2026-18577 allows a remote unauthenticated attacker to bypass authentication and obtain administrative control of vulnerable N-central servers in affected deployments. …
Signals
as the pipeline stamped them- KEV
- Active exploitation (KEV)
- What to do
- On CISA KEV — actively exploited. Patch immediately.
CISA KEV means this flaw has been seen exploited in real attacks — not predicted, observed. Treat it as urgent regardless of its score.
CVE
KEV from CISA · EPSS from FIRST| Id | KEV | EPSS | Reference |
|---|---|---|---|
| CVE-2026-18577 | KEV | 15% | NVD ↗ |
Sources · 2
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