What is CVE-2023-4178?

CVE-2023-4178 is a critical-severity vulnerability in Neutron Smart Vms, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2023-09-05.

How severe is CVE-2023-4178?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Neutron Smart Vms

CVE-2023-4178

Authentication Bypass by Spoofing vulnerability in Neutron Neutron Smart VMS allows Authentication Bypass. This issue affects Neutron Smart VMS: before b1130.1.0.1.

Published 2023-09-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.008 · change: +0.001

Affected products

Neutron Smart Vms — versions 0
Neutron Smart Vms

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

www.usom.gov.tr/bildirim/tr-23-0496 (Third Party Advisory, government-resource, broken-link)
siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0496 (government-resource)

Frequently asked questions

What is CVE-2023-4178?: CVE-2023-4178 is a critical-severity vulnerability in Neutron Smart Vms, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2023-09-05.
How severe is CVE-2023-4178?: Critical severity. CVSS v3 base score is 9.8 out of 10.