CVE-2022-23227
Published 2022-01-14 · Updated 2026-06-17 · Source cve@mitre.org
Summary
CVE-2022-23227 is a critical-severity (CVSS 9.8) vulnerability in NUUO NVRmini2 Devices. CISA added it to the Known Exploited Vulnerabilities catalog on December 18, 2024, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by January 8, 2025. CISA does not currently list it as used in ransomware campaigns. NUUO has 2 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.
All 2 known-exploited NUUO vulnerabilities →Description
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.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: NUUO — NVRmini2 Devices
Name: NUUO NVRmini2 Devices Missing Authentication Vulnerability
Date added: 2024-12-18 · Due: 2025-01-08
Required action: The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.
References
- https://github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd
- https://github.com/rapid7/metasploit-framework/pull/16044
- https://news.ycombinator.com/item?id=29936569
- https://portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-recording-device
- https://github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd
- https://github.com/rapid7/metasploit-framework/pull/16044
- https://news.ycombinator.com/item?id=29936569
- https://portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-recording-device

