SB2026080384 - Authentication bypass in N-able N-central
Published: August 3, 2026
Security Bulletin ID
SB2026080384
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Authentication bypass using an alternate path or channel (CVE-ID: CVE-2026-18556)
CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel
CVSSv4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to missing authentication checks. A remote attacker can send specially crafted requests to the application to bypass authentication process.
Remediation
Install update from vendor's website.