Critical 9.8Known exploited (CISA KEV)Published Jan 14, 2022

CVE-2022-23227NUUO 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 authenticati…

Updated under an hour ago (Oct 27, 2026, 2:00 AM ET)

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It affects nuuo nvrmini2_firmware. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Dec 18, 2024; federal agencies had to remediate by Jan 8, 2025. Treat that date as your deadline.

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Every CVE for nuuo nvrmini2_firmware

Exploited in the last 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.

CVSS: 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-306
Known exploited: Added to CISA KEV Dec 18, 2024; federal remediation due Jan 8, 2025The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.
EPSS (exploitation in the next 30 days): 48.50% (percentile 99)
Assigned by: mitre
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nuuo nvrmini2_firmware nuuo:nvrmini2_firmware	through 3.11.0	NVD

References

References

https://github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd	x-refsource-misc, exploit, third-party-advisory
https://github.com/rapid7/metasploit-framework/pull/16044	x-refsource-misc, exploit, issue-tracking, third-party-advisory
https://portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-recording-device	x-refsource-misc, exploit, third-party-advisory
https://news.ycombinator.com/item?id=29936569	x-refsource-misc, third-party-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23227	us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.