What’s Vulnerable › Vulnerabilities

CVE-2022-23227: NUUO NVRmini2 Devices Missing Authentication Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2024-12-18
• EPSS: 48.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-14 · updated 2026-06-17
• Weakness: CWE-306

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: through 3.11.0

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://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

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