CVE-2022-23227: NUUO NVRmini2 Devices Missing Authentication Vulnerability

Critical severity, CVSS 9.8. Actively exploited: in CISA KEV since 2024-12-18. EPSS: 48.5% chance of exploitation in the next 30 days.

NUUO NVRmini2 through 3.11 allows an unauthenticated attacker to upload an encrypted TAR archive, which can be abused to add arbitrary users because of the lack of handle_import_user.php authentication. When combined with another flaw (CVE-2011-5325), it is possible to overwrite arbitrary files under the web root and achieve code execution as root.

Affected products

• NUUO NVRmini2 Firmware: up to and including 3.11.0

Published 2022-01-14. Last modified 2026-06-17.