IRONSMITHINTEL
CRITICALCVSS9.8
|
Actively Exploited
|CISA KEV|CVE-2018-14933|Auth: none — unauthenticated|Reboot: required|Manual only

NUUO NVRmini Devices OS Command Injection Vulnerability

NUUO NVRmini devices contain an OS command injection vulnerability. This vulnerability allows remote command execution via shell metacharacters in the uploaddir parameter for a writeuploaddir command.

Published Aug 4, 2018 · Updated May 16, 2026
Why patchRisk explained in plain English
Worst-case scenarioIf unpatched

A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. Federal agencies are required to remediate by 2025-01-08 under CISA BOD 22-01.

How the attack worksNo clicks needed

This is a OS Command Injection (CWE-78) vulnerability in NUUO NVRmini Devices. upgrade_handle.php on NUUO NVRmini devices allows Remote Command Execution via shell metacharacters in the uploaddir parameter for a writeuploaddir command. Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.

📧

Phishing link

🖼

Malicious file

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Server compromised

Am I affected?Quick check

Probably yes if any of these apply:

IT Security
Running nvrmini firmware: 2016
Real-world incidentsWhat we've seen

Active exploitation documented in the wild. Threat-research write-up: https://www.exploit-db.com/exploits/45070/

How to patch

Manual remediation steps

Apply the Vendor Patch

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog — apply the vendor's security update as soon as possible.

CISA required action: The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.

References

    1
    Vendor advisory: https://nuuo.com/wp-content/uploads/2023/03/NUUO-EOL-letter%EF%BC%BFNVRmini-2-and-NVRsolo-series.pdf
    1
    NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2018-14933
    1
    CISA KEV: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-14933
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