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Actively exploited

CVE-2025-8876 N-able N-Central Command Injection Vulnerability

N-able N-Central contains a command injection vulnerability via improper sanitization of user input.

From the CISA KEV catalogue version 2026.11.06, with Cybergen analysis. Updated 6 Nov 2026.

Our Assessment

Should You Worry?

Patch nowCybergen assessment
  • CISA confirmed exploitation in the wild and added it to the Known Exploited Vulnerabilities catalogue on 13 Aug 2025.
  • Rated Critical severity (CVSS 9.4, scored by Vendor).
  • It has been in the catalogue for 450 days. Systems still unpatched now have almost certainly been scanned for it.
The Vulnerability

What It Is

Improper Input Validation vulnerability in N-able N-central allows OS Command Injection.This issue affects N-central: before 2025.3.1.

Affected Versions

ProductVersions
N-able N-centralbefore 2025.3.1

From the public CVE record, as supplied by the vendor. Always confirm against the vendor advisory.

From Watch to Action

What To Do Now

  1. 1

    Find it

    Search your asset inventory and external attack surface for N-able N-Central. Include cloud images, appliances and anything a supplier runs for you.

    Attack Surface Management
  2. 2

    Fix it

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Vulnerability Management
  3. 3

    Hunt for compromise

    If an affected system was reachable before you patched, assume it may have been hit. Check logs, new accounts, web shells and outbound connections from the date of exposure.

    Incident Response
  4. 4

    Prove it is fixed

    Rescan or test the system after patching. Upgrades that fail silently and forgotten secondary instances are common.

    Penetration Testing

Vendor Advisories

Regulation

The Compliance Clock

Cyber EssentialsRated critical, so if it affects devices in your Cyber Essentials scope, the update must be installed within 14 days of the vendor releasing it.NIS2If exploitation causes a significant incident, essential and important entities owe their CSIRT an early warning within 24 hours and a notification within 72 hours.DORAFinancial entities must classify ICT incidents and send an initial notification for a major incident within strict deadlines, with exploited flaws a common cause.US federal (BOD 22-01)Federal civilian agencies had until 20 Aug 2025 to remediate. A sensible benchmark for everyone else.

General guidance, not legal advice. Your obligations depend on your sector, scope and jurisdiction.

Stay Ahead

More Exploited N-able Flaws

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CVE-2026-86218N-able N-central Static Code Injection VulnerabilityAdded 8 Sep 2026CVE-2026-18556N-able N-central Authentication Bypass Using an Alternate Path or Channel VulnerabilityAdded 4 Aug 2026CVE-2026-18577N-able N-central Authentication Bypass Using an Alternate Path or Channel VulnerabilityAdded 3 Aug 2026CVE-2025-8875N-able N-Central Insecure Deserialization VulnerabilityAdded 13 Aug 2025

All 5 exploited N-able vulnerabilities

Not Sure If You Are Exposed?

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Evidence

Sources

  1. CISA Known Exploited Vulnerabilities catalogue
  2. NVD: CVE-2025-8876
  3. CVE record: CVE-2025-8876
  4. FIRST EPSS
  5. status.n-able.com/2025/08/13/announcing-the-ga-of-n-central-2025-3-1/