VulnerabilityDeferred

CVE-2026-80253

An improper physical access control issue exists in ShizenBox2 (dev-conf).

HIGH 7.0EPSS 0.33%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An improper physical access control issue exists in ShizenBox2 (dev-conf). If exploited, an attacker with physical access to the product may execute bootloader commands without authentication.

CVSS 4.0: 7.0 HIGHCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.33% probability · 26th percentile
CISA KEV: Not listed
Weakness: CWE-1263
Source: vultures@jpcert.or.jp

References

https://jvn.jp/en/jp/JVN91715694/
https://www.se-digital.net/wp-content/uploads/2026/08/CVE-2026-80253.pdf

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.