CVE-2026-18556, CVE-2026-18577: n-central 2026.3; +1 more affected products

CVE-2026-18556, CVE-2026-18577. CVSS 3.1 base score 7.4 (HIGH, NVD). EPSS 0.07882 (percentile 0.94699), scored 22-Oct-2026.

CVE-2026-18556

Affected technology

n-central · through 2026.1 (inclusive)
n-able

N-central · 0 through 2026.1
N-able

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

The source reports that an attacker could get past authentication checks. Source advisory’s CVSS 4.0 assessment (base score 8.2/10) rates confidentiality impact as high; integrity and availability impact as none.

CVE-2026-18577

Affected technology

n-central · before 2026.3 (exclusive)
n-able

n-central · 2026.3
n-able

N-central · 0 through 2026.3
N-able

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Published 24-Oct-2026 01:43 UTC

CWE: CWE-288
CCR priority: 31.6 /100 (P4)
CVSS 3.1: 7.4 /10 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N · NVD
EPSS: 0.07882 · percentile 0.94699 · 2026-10-22
KEV: no

Provenance

ACSC / ASD Alerts (Australia) · Source record · observed 2026-10-04 06:06:25.755943+00:00 UTC
FIRST EPSS daily exploit-probability · Source record · observed 2026-10-23 06:11:59.600832+00:00 UTC
FIRST EPSS daily exploit-probability · Source record · observed 2026-10-23 06:11:59.600832+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-18556.html