CVE-2018-14933
NUUO NVRmini Devices OS Command Injection Vulnerability
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 status
CISA Known Exploited Vulnerabilities
Listed by CISA on 18 December 2024. US federal agencies were required to remediate it by 8 January 2025.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 94.8%, which is higher than 99.9% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2018-14933 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2018-14933.
What does CVE-2018-14933 affect?
CVE-2018-14933 affects 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.
How severe is CVE-2018-14933?
CVE-2018-14933 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 94.8%, higher than 99.9% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 8 January 2025.
How should organisations respond to CVE-2018-14933?
Apply the vendor patch for NUUO NVRmini Devices as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.