CVE-2025-8876: N-able N-Central Command Injection Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 13 Aug 2025, 1 day before the CVE record was published.
- How likely is exploitation in the next 30 days?
- 3.4%
EPSS score, percentile 89 of all scored records
- How severe?
- 9.4 Critical
CVSS v4.0 base score, given by the CNA
- What should I do?
CISA deadline 20 Aug 2025. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- before 2025.3.1
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date for this action: 20 August 2025.
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
- https://status.n-able.com/2025/08/13/announcing-the-ga-of-n-central-2025-3-1/
- https://nvd.nist.gov/vuln/detail/CVE-2025-8876
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | before 2025.3.1 |
Versions not listed are: unaffected.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
N-able N-Central contains a command injection vulnerability via improper sanitization of user input.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2025-8876 to its Known Exploited Vulnerabilities (KEV) catalog on 13 Aug 2025.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 20 Aug 2025.
- The CVE record was published on 14 Aug 2025, 1 day after it was added to KEV.
- The CVE record carries a CVSS v4.0 base score of 9.4 (Critical), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 3.4% (percentile 89), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
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.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-20: Improper Input Validation
Attack patterns (CAPEC)
- CAPEC-88: OS Command Injection
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 13 Aug 2025 | Added to CISA KEV |
| 14 Aug 2025 | CVE record published |
| 20 Aug 2025 | CISA due date for the required action |
| 21 Oct 2025 | CVE record last updated |
References
More exploited N-able vulnerabilities
- CVE-2026-86218: N-able N-central Static Code Injection Vulnerability
- CVE-2026-18556: N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability
- CVE-2026-18577: N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability
- CVE-2025-8875: N-able N-Central Insecure Deserialization Vulnerability