high Known exploitedREV. 01
CVE-2026-18556N-able N-central — authentication bypass via alternate path
N-able N-central lets a remote attacker skip authentication by using an alternate path or channel into the product, gaining access to confidential data and the ability to alter it. Affects N-central through 2026.1 and is being exploited in the wild.
Read the risk
THE VITAL STATS- CVSS score
- 7.4/ 10 CVSS v3.1
- EPSS probability
- 40% Likelihood of exploitation
- Attack complexity
- High Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2026-08-01
- Added to KEV
- 2026-08-04
- Exploit published
- Not recorded
- Confidence
- medium
- Kill chain
- initial access
- MITRE ATT&CK
- T1190
- Severity
- high
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attacker needsNetwork access to the N-central server; no credentials or user interaction needed, but the bypass path has high attack complexity.
Behind the card
4 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisoryuptime.n-able.comuptime.n-able.com
- 04Vendor advisoryn-able.comn-able.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_at | nvd.nist.gov | 2026-09-22 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added | cisa.gov | 2026-09-22 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-09-22 | scrty-crds-pipeline/0.1 | high |
| title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-09-22 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
First printing. This card has not been reprinted since publication.