Auth bypass in Shizen Connect Inc. Shizenbox2 (Edge-App)

CVE-2026-80254

Authorization bypass through user-controlled key issue exists in ShizenBox2 (edge-app). If exploited, an attacker who can log in to the product may change the other user's password.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (27.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-80254: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-80254?
CVE-2026-80254 is a medium-severity vulnerability in Shizen Connect Inc. Shizenbox2 (Edge-App), classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-09-03.
How severe is CVE-2026-80254?
Medium severity. CVSS v3 base score is 6.5 out of 10.