What is CVE-2023-22367?

CVE-2023-22367 is a medium-severity vulnerability in Betrend Corporation And Ichiran Inc. App For iOS Android, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2023-02-13.

How severe is CVE-2023-22367?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Betrend Corporation And Ichiran Inc. App For iOS Android

CVE-2023-22367

Ichiran App for iOS versions prior to 3.1.0 and Ichiran App for Android versions prior to 3.1.0 improperly verify server certificates, which may allow a remote unauthenticated attacker to eavesdrop on an encrypted communication via a man-in-the-middle attack.

Vulnerability class: Improper Certificate Validation

Published 2023-02-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (41.5th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Betrend Corporation And Ichiran Inc. App For iOS Android — versions Ichiran App for iOS versions prior to 3.1.0, and Ichiran App for Android versions prior to 3.1.0
Ichiranusa Ichiran

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

apps.apple.com/jp/app/一蘭公式アプリ/id1118806170 (Product)
play.google.com/store/apps/details (Product)
jvn.jp/en/jp/JVN11257333/ (Third Party Advisory)

Frequently asked questions

What is CVE-2023-22367?: CVE-2023-22367 is a medium-severity vulnerability in Betrend Corporation And Ichiran Inc. App For iOS Android, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2023-02-13.
How severe is CVE-2023-22367?: Medium severity. CVSS v3 base score is 5.9 out of 10.