CVE-2026-18577
CVSS v3
8.1
HIGH
EPSS Score
2.5 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1
CISA Known Exploited Vulnerability
- Date Added
- 2026-08-03
- Patch Due Date
- 2026-08-06
- Ransomware Use
- Unknown
Technical details
- CVSS v3 Vector
- 3.1
- Published
- 2026-08-02
- Last Modified
- 2026-08-04
Frequently asked questions
What is CVE-2026-18577?
An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1
Is CVE-2026-18577 actively exploited?
Yes. CVE-2026-18577 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-08-06.
What is the CVSS score for CVE-2026-18577?
CVE-2026-18577 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string 3.1.
Is CVE-2026-18577 affecting your environment?
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