NUUO NVRmini2 Devices Missing Authentication Vulnerability
n/a — n/a
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.
9.8
49.4%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- Jan 14, 2022
- Modified
- Oct 21, 2025
- Added to KEV
- Dec 18, 2024
- Federal patch due
- Jan 8, 2025
CISA required action
The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.
Weakness classification
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2022-23227, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2022-23227 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.
References
Frequently asked questions
What is CVE-2022-23227?
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.
How severe is CVE-2022-23227?
CVE-2022-23227 has a CVSS base score of 9.8 out of 10 (CVSS 3.1).
Is CVE-2022-23227 actively exploited in the wild?
Yes. CVE-2022-23227 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Dec 18, 2024, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2022-23227?
49.4% - meaning FIRST.org's EPSS model estimates a 49.4% probability this vulnerability will be exploited in the wild within 30 days (99% percentile among all scored CVEs).
What type of vulnerability is CVE-2022-23227?
CVE-2022-23227 is classified under CWE-306 (CWE-306 Missing Authentication for Critical Function).
Cross-checked against
Impactr finds and proves whether CVE-2022-23227 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.