What’s Vulnerable › Vulnerabilities

CVE-2022-40903

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-11-14 · updated 2026-06-17
• Weakness: CWE-307

Description

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.

Affected products

• Aiphone Gt-Db-Vn Firmware: before 2.00 — fixed in 2.00
• Aiphone Gt-Dmb-Lvn Firmware: before 3.00 — fixed in 3.00
• Aiphone Gt-Dmb-N Firmware: before 3.00 — fixed in 3.00
• Aiphone Gt-Dmb Firmware: before 3.00 — fixed in 3.00

How to fix

Upgrade to a fixed version: Aiphone Gt-Db-Vn Firmware 2.00; Aiphone Gt-Dmb-Lvn Firmware 3.00; Aiphone Gt-Dmb-N Firmware 3.00; Aiphone Gt-Dmb Firmware 3.00. Check the vendor advisory for mitigations.

References

• https://jvn.jp/en/jp/JVN75437943/index.html
• https://www.aiphone.net/
• https://jvn.jp/en/jp/JVN75437943/index.html
• https://www.aiphone.net/

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