What is CVE-2023-31196?

CVE-2023-31196 is a high-severity vulnerability in Inaba Ac-Pd-Wapu, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2023-06-13.

How severe is CVE-2023-31196?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Inaba Ac-Pd-Wapu

CVE-2023-31196

Missing authentication for critical function in Wi-Fi AP UNIT allows a remote unauthenticated attacker to obtain sensitive information of the affected products. Affected products and versions are as follows: AC-PD-WAPU v1.05_B04 and earlier, AC-PD-WAPUM v1.05_B04 and earlier, AC-PD-WAPU-P v1.05_B04P and earlier, AC-PD-WAPUM-P v1.05_B04P and earlier, AC-WAPU-300 v1.00_B07 and earlier, AC-WAPUM-300 v1.00_B07 and earlier, AC-WAPU-300-P v1.00_B07 and earlier, and AC-WAPUM-300-P v1.00_B07 and earlier

Vulnerability class: Broken Authentication

Published 2023-06-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.4th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

jvn.jp/en/jp/JVN28412757/ (Third Party Advisory, Mitigation)
www.inaba.co.jp/abaniact/news/Wi-Fi_AP_UNITにおける複数の脆弱性について.pdf (Vendor Advisory)

Frequently asked questions

What is CVE-2023-31196?: CVE-2023-31196 is a high-severity vulnerability in Inaba Ac-Pd-Wapu, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2023-06-13.
How severe is CVE-2023-31196?: High severity. CVSS v3 base score is 7.5 out of 10.