CVE-2026-18577
Incomplete patch leads to administrative account takeover
Description
An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1
INFO
Published Date :
Aug. 2, 2026, 11:16 p.m.
Last Modified :
Aug. 2, 2026, 11:16 p.m.
Remotely Exploit :
Yes !
Source :
a5532a13-c4dd-4202-bef1-e0b8f2f8d12b
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | a5532a13-c4dd-4202-bef1-e0b8f2f8d12b | ||||
| CVSS 4.0 | HIGH | a5532a13-c4dd-4202-bef1-e0b8f2f8d12b |
Solution
- Apply the complete vendor patch for N-central.
- Verify successful patch installation.
- Monitor for unauthorized access attempts.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-18577.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18577 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-18577
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-18577 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-18577 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by a5532a13-c4dd-4202-bef1-e0b8f2f8d12b
Aug. 02, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'N-able', 'product': 'N-central', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': '2026.3'}, {'status': 'unaffected', 'version': '2026.3.1.7', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}] Added Description An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1 Added CVSS V4.0 AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/E:A/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:X/V:X/RE:X/U:X Added CWE CWE-288 Added Reference https://documentation.n-able.com/N-central/Release_Notes/GA/Content/N-central_2026.3_HF1_Release_Notes.htm Added Reference https://status.n-able.com/2026/08/02/n-central-2026-3-hotfix-1-mitigation-for-cve-2026-18577/ Added Reference https://www.cve.org/CVERecord?id=CVE-2026-18556