What is CVE-2026-19426?

CVE-2026-19426 is a high-severity vulnerability in Fitsoft Pos System, classified under Missing Authentication for Critical Function. CVSS score: 8.2/10. Published 2026-08-12.

How severe is CVE-2026-19426?

High severity. CVSS v3 base score is 8.2 out of 10.

Auth bypass in Fitsoft Pos System

CVE-2026-19426

POS System developed by FitSoft has a Missing Authentication vulnerability. Unauthenticated remote attackers can directly access and operate the system.

Vulnerability class: Broken Authentication

Published 2026-08-12 · last modified 2026-08-26.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (41.6th percentile), scored 2026-09-27.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Fitsoft Pos System — versions all

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

www.twcert.org.tw/tw/cp-132-11100-407c5-1.html (third-party-advisory)
www.twcert.org.tw/en/cp-139-11101-4f85c-2.html (third-party-advisory)

Frequently asked questions

What is CVE-2026-19426?: CVE-2026-19426 is a high-severity vulnerability in Fitsoft Pos System, classified under Missing Authentication for Critical Function. CVSS score: 8.2/10. Published 2026-08-12.
How severe is CVE-2026-19426?: High severity. CVSS v3 base score is 8.2 out of 10.