CISA Warns of N-able N-central RCE Vulnerability Exploited in the Wild
CISA added CVE-2026-86218, a CVSS 10.0 unauthenticated RCE in N-able N-central RMM, to its KEV catalog; on-premises admins must patch to 2026.3.1.14.
CISA added CVE-2026-86218, a CVSS 10.0 static code injection (CWE-96) enabling unauthenticated RCE in N-able N-central, to the Known Exploited Vulnerabilities catalog on September 8, 2026. The flaw affects all on-premises builds before 2026.3.1.14 across the 2025.4 through 2026.3 release lines; N-able shipped Hotfix 4 for 2026.3 on September 5-6, 2026. Huntress research indicates at least one customer's N-central instance was compromised on September 4, and federal civilian agencies must mitigate by September 11 under BOD 26-04. Hosted environments were patched server-side, but a compromised RMM server can serve as a single point of entry into entire MSP client bases.
- CVE-2026-86218 (CVSS 10.0, CWE-96) enables unauthenticated RCE on exposed N-central servers
- Added to CISA KEV September 8; BOD 26-04 gives federal agencies until September 11 to mitigate
- Affects on-premises builds before 2026.3.1.14 across the 2025.4-2026.3 release lines
- Huntress reported a customer compromise on September 4, two days before the hotfix shipped
- Fourth N-able emergency hotfix in five weeks, after CVE-2026-86206 and CVE-2026-86207
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
CVE-2026-86207+1 related CVE | Authentication bypass in N-able N-central internal APIs before 2026.3 HF 3 | 7.7 group max | <1% | ||
| CVE-2026-86218 | Pre-Auth Static Code Injection RCE in N-able N-central (Exploited in the Wild) | 10.0 | 15% | KEVPoC ×3 | KEV |
From the original article
2 min read at cybersecuritynews.com
The Cybersecurity and Infrastructure Security Agency has added a maximum-severity flaw in N-able’s N-central remote monitoring and management platform to its Known Exploited Vulnerabilities catalog, confirming that attackers are actively abusing the bug against real-world targets. The vulnerability, tracked as CVE-2026-86218, carries a perfect CVSS score of 10.
By Guru Baran · cybersecuritynews.com
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