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…
Browse: All 2022 CVEs · All vendors
- CVSS score
- 9.8 Critical
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- CISA KEV
- Yes — actively exploited (added 2024-12-18, remediation due 2025-01-08)
- Weakness (CWE)
- CWE-306
- Published
- 2022-01-14
- Last modified
- 2026-06-17
- NVD status
- Analyzed
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.
Affected products
- nuuo nvrmini2 firmware
Affected ranges per NVD CPE data; confirm exact versions in the vendor advisory.
Required action (CISA)
The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product. Federal remediation deadline: 2025-01-08.
How to prioritize this
This vulnerability is on the CISA KEV list, meaning it is being actively exploited — treat it as urgent regardless of the raw CVSS number. Use the live CVE lookup for the latest NVD data, and the CVSS 3.1 calculator to model your own environmental score.
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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23227
FAQ
Is CVE-2022-23227 actively exploited?
Yes. CISA added CVE-2022-23227 to its Known Exploited Vulnerabilities (KEV) catalog on 2024-12-18, with a federal remediation deadline of 2025-01-08. A KEV listing means real-world exploitation is confirmed, so patching this should be prioritized above many higher-CVSS bugs that aren't being exploited.
What is the CVSS score of CVE-2022-23227?
CVE-2022-23227 has a CVSS base score of 9.8 (Critical). Its vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Related vulnerabilities
- CVE-2018-14933 — NUUO NVRmini Devices
- CVE-2026-72529 — TrueConf Server
- CVE-2026-46817 — Oracle E-Business Suite
- CVE-2026-56164 — Microsoft SharePoint Server
- CVE-2026-20253 — Splunk Enterprise
- CVE-2026-35273 — Oracle PeopleSoft Enterprise PeopleTools
Data source: NVD & CISA KEV. Shown as-is; nothing added. Last generated from NVD data — re-check the live tool for updates.
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