CVE-2022-23227

NUUO NVRmini2 through 3.11 allows an unauthenticated attacker to upload an encrypted TAR archive,...

9.8 CriticalIn KEV

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

48.5%Up 46.0 points since Feb 8, 2022

What each source reports

NVD Score used 9.8

Record: CVE-2022-23227
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-306
Updated: 2026-11-02

CVE List 9.8

Record: CVE-2022-23227
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-306
Updated: 2026-11-02

EUVDEUVD-2022-28314 9.8

Record: EUVD-2022-28314
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-5f63-p3w5-jphc 9.8

NUUO NVRmini2 through 3.11 allows an unauthenticated attacker to upload an encrypted TAR archive,...

Record: GHSA-5f63-p3w5-jphc
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-306
Updated: 2026-11-02

CISA KEV No score

NUUO NVRmini2 Devices Missing Authentication Vulnerability

NUUO NVRmini2 devices contain a missing authentication vulnerability that allows an unauthenticated attacker to upload an encrypted TAR archive, which can be abused to add arbitrary users.

Record: CVE-2022-23227
Weakness: CWE-306
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	exploitation
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, CISA KEV, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-23227 is a critical vulnerability (CVSS 9.8) in Nuuo Nvrmini2 Devices, published January 14, 2022. CISA lists it as known to be exploited, since December 18, 2024. EUVD reports exploitation since December 18, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 48.5%, the 98th percentile. No source names a fixed version.