What is CVE-2026-1364?

CVE-2026-1364 is a critical-severity vulnerability in Jnc I6, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-01-23.

How severe is CVE-2026-1364?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Jnc I6

CVE-2026-1364

IAQS and I6 developed by JNC has a Missing Authentication vulnerability, allowing unauthenticated remote attackers to directly operate system administrative functionalities.

Vulnerability class: Broken Authentication

EPSS: 0.001 (25.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Jnc I6 — versions 0
Jnc Iaqs — versions 0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

www.twcert.org.tw/tw/cp-132-10652-4cdca-1.html (third-party-advisory)
www.twcert.org.tw/en/cp-139-10653-117a1-2.html (third-party-advisory)

Frequently asked questions

What is CVE-2026-1364?: CVE-2026-1364 is a critical-severity vulnerability in Jnc I6, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-01-23.
How severe is CVE-2026-1364?: Critical severity. CVSS v3 base score is 9.8 out of 10.