anonhaven

CVE-2026-18556

HIGH CVSS 4.0: 8.2 EPSS 40.2% ACTIVE EXPLOIT
Updated Aug 05, 2026
N-Able

CISA Known Exploited Vulnerability (KEV)

This vulnerability is actively exploited in the wild. Immediate patching is strongly recommended.

Due Date: Aug 07, 2026

Parameter Value
CVSS 8.2 (HIGH)
Affected Versions before 2026.1
Type CWE-288 (Authentication Bypass Using Alternate Path)
Vendor N-Able
Public PoC Yes

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Weakness Type (CWE)

CWE-288 Authentication Bypass Using Alternate Path

Vulnerable Products 1

Configuration From (including) Up to (excluding)
N-Able N-Central
cpe:2.3:a:n-able:n-central:*:*:*:*:*:*:*:*
 — <= 2026.1

References 3

https://uptime.n-able.com/
a5532a13-c4dd-4202-bef1-e0b8f2f8d12b
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026…
134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.n-able.com/blog/n-central-security-update-august-2-2026
134c704f-9b21-4f2e-91b3-4a467353bcc0
Share Post Share Share Share

Related Vulnerabilities

CVE-2026-15580

N-Able

6.9

CVE-2026-18577

N-Able

8.2

CVE-2025-9316

N-Able

6.9

CVE-2025-11700

N-Able

7.5

CVE-2025-11367

N-Able

9.8