What is CVE-2022-40903?

CVE-2022-40903 is a medium-severity vulnerability in Aiphone Gt-Db-Vn, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 6.5/10. Published 2022-11-14.

How severe is CVE-2022-40903?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Aiphone Gt-Db-Vn

CVE-2022-40903

Aiphone GT-DMB-N 3-in-1 Video Entrance Station with NFC Reader 1.0.3 does not mitigate against repeated failed access attempts, which allows an attacker to gain administrative privileges.

Published 2022-11-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

References

jvn.jp/en/jp/JVN75437943/index.html (VDB Entry, Third Party Advisory)
www.aiphone.net/ (Vendor Advisory)

Frequently asked questions

What is CVE-2022-40903?: CVE-2022-40903 is a medium-severity vulnerability in Aiphone Gt-Db-Vn, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 6.5/10. Published 2022-11-14.
How severe is CVE-2022-40903?: Medium severity. CVSS v3 base score is 6.5 out of 10.