by Kastro
Paper/Archive/CVE-2026-9508

CVE-2026-9508

Suprema BioStar 2 (server) — Incorrect Permission Assignment for Critical Resource vulnerability in Suprema's BioStar

EPSS 0.3%CVSS 10.0
critical.is priorityof 100
36
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 27.6.276 × 205.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Incorrect permission settings on a critical resource in Suprema BioStar 2 (versions 2.9.3 through 2.9.11) that allow backup files to be publicly exposed when the administrator configures their path within the NGINX webroot. This vulnerability allows an attacker with network access to directly download backup ZIP files via ‘http(s)://[server]/download/…’ without requiring authentication. This exposes highly sensitive information that can lead to server impersonation, unauthorized access to databases, and lateral movement.

Affected

ProductAffectedFixed inSource
BioStar 2 (server)v2.9.3 – v2.9.11v2.9.12CNA

Scores by source

INCIBE (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchincibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-supremas-biostar