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ExploitedIn CISA KEV

CVE-2022-23227

Exploitation confirmed. First attested on 2024-12-18 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2022-01-14
  • WeaknessCWE-306

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2022-01-1418:15CVE publishedNVD
  2. 2024-12-18Added to the CISA KEV catalogCISA KEV
  3. 2024-12-18Listed as exploited by GCVEGCVE
  4. 2024-12-18Exploitation first reportedCISA KEV
  5. 2024-12-2104:56SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-23227?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-23227?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Nuuo nvrmini2 firmwareversion to verify
BranchAffectedFixed in
3.11≤ 3.11.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. CISA’s required action: The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.due 2025-01-08

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2024-12-18
Patch Due Date
2025-01-08
Ransomware Use
Unknown
Required Action
The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2022-01-14
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-5f63-p3w5-jphc

Frequently asked questions

What is 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 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.

Is CVE-2022-23227 actively exploited?

Yes. CVE-2022-23227 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2025-01-08.

What is the CVSS score for CVE-2022-23227?

CVE-2022-23227 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record