Risk Letters

Exploited vulnerability

CVE-2026-18556

TLP:CLEAR

N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability

N-able N-central contains an authentication bypass using an alternate path or channel that allows for authentication bypass.

Facts

  • Vendor: N-able
  • Product: N-central
  • CVSS: 8.2
  • EPSS (probability of exploitation within 30 days): 7.9 %
  • On CISA's Known Exploited Vulnerabilities list since: 4 August 2026
  • First known exploitation: 4 August 2026
  • CISA's deadline for US federal agencies: 7 August 2026
  • Weakness: CWE-288
  • First seen by Risk Letters: 4 August 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD