CVE-2022-23227

NUUO NVRmini2 Devices Missing Authentication Vulnerability

9.8 CRITICALActively exploited (CISA KEV)Public exploitEPSS 48.5%

Published14 Jan 2022
Added to CISA KEV18 Dec 2024
Remediation due8 Jan 2025

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 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Nuuo Nvrmini2 Firmware≤ 3.11.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

https://github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkdExploitThird Party Advisory
https://github.com/rapid7/metasploit-framework/pull/16044ExploitIssue TrackingThird Party Advisory
https://news.ycombinator.com/item?id=29936569Third Party Advisory
https://portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-recording-deviceExploitThird Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23227US Government Resource

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2022-23227 being actively exploited?

Yes. CVE-2022-23227 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 18 Dec 2024.

How severe is CVE-2022-23227?

CVE-2022-23227 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 48.5% probability of exploitation.

Which products are affected by CVE-2022-23227?

Affected products include Nuuo Nvrmini2 Firmware.

How do I fix CVE-2022-23227?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-23227 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation works Book a demo

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.