What is CVE-2026-44083?

CVE-2026-44083 is a critical-severity vulnerability in Qnap Qumagie, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.8/10. Published 2026-06-09.

How severe is CVE-2026-44083?

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

Auth bypass in Qnap Qumagie

CVE-2026-44083

An authorization bypass through user-controlled key vulnerability has been reported to affect QuMagie. The remote attackers can then exploit the vulnerability to gain unintended privileges. We have already fixed the vulnerability in the f…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.005 (37.4th 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

Qnap Qumagie
Qnap Systems Inc. Qumagie — versions 2.9.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

security@qnapsecurity.com.tw (Broken Link)

Frequently asked questions

What is CVE-2026-44083?: CVE-2026-44083 is a critical-severity vulnerability in Qnap Qumagie, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.8/10. Published 2026-06-09.
How severe is CVE-2026-44083?: Critical severity. CVSS v3 base score is 9.8 out of 10.