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CVE-2022-23227

88
FAUCET Score

CVE-2022-23227 is a critical authentication bypass vulnerability affecting NUUO NVRmini2 devices through version 3.11. An unauthenticated attacker can upload an encrypted TAR archive, exploiting a missing authentication check in handle_import_user.php to add arbitrary users. This flaw, when chained with CVE-2011-5325, allows for arbitrary file overwrites under the web root, leading to root-level code execution. The vulnerability has a CVSS score of 9.8 (Critical), indicating a severe risk due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. Its high EPSS score and FAUCET Risk Score of 100/100 further emphasize its significant threat. CVE-2022-23227 is listed in CISA's KEV catalog, confirming active exploitation in the wild. While no public Metasploit, Nuclei, or ExploitDB modules are available, the vulnerability has garnered significant community discussion with over 11 mentions, suggesting awareness and potential for further exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.11.0CPE matchmatch criteria
cpe:2.3:o:nuuo:nvrmini2_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
49.43%
Probability of exploitation in next 30 days
EPSS Percentile
98.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Added to KEV · Dec 18, 2024
This CVE's current EPSS score of 0.4943 is in the 96th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
github.com / pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd
ExploitThird Party Advisory
github.com / rapid7/metasploit-framework/pull/16044
ExploitIssue TrackingThird Party Advisory
news.ycombinator.com / item
Third Party Advisory
portswigger.net / daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-recording-device
ExploitThird Party Advisory