Background exploitation KEV catalog
CVE-2025-8876

N-able N-Central Command Injection Vulnerability

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

CheckOps priority index
5.1/10 Patch within 7 days
Severity9.4
Probability0.4
Exploitation2/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 4.1% +0.7 pts in 7 days
CVSS 4.0 9.4 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/
Exploited for 447 days 13 Aug 2025
CISA due date 20 Aug 2025 for US federal agencies

Exploitation probability EPSS · FIRST

05010025 Sep05 Oct15 Oct24 Oct02 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 2 / 5

  • KEV catalog (CISA)13 Aug 2025
  • Exploited in EUVD (ENISA)13 Aug 2025
  • Used by ransomwareno
  • EPSS above 10 %4.1%
  • No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

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

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Affected products

N-centralN-Central
Affected versions
  • 0 <2025.3.1

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Exploitation reported (ENISA)

  2. Added to the KEV catalog

  3. Published

  4. CISA remediation due date

References

Other exploited vulnerabilities from the same vendor

  • CVE-2026-86218N-able N-central Static Code Injection Vulnerability
    6.9 · Actively exploited
  • CVE-2026-18556N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability
    5.3 · Actively exploited
  • CVE-2026-18577N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability
    6.1 · Actively exploited
  • CVE-2025-8875N-able N-Central Insecure Deserialization Vulnerability
    5.0 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities