How severe is CVE-2018-14933?

CVE-2018-14933 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2018-14933?

Affected package information for CVE-2018-14933 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2018-14933?

No fixed version has been published for CVE-2018-14933 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2018-14933 actively exploited in the wild?

Yes. There are 9 known exploit references for CVE-2018-14933, including 2 documented proof-of-concept exploits on Exploit-DB and 7 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2018-14933?

CVE-2018-14933 has an EPSS (Exploit Prediction Scoring System) score of 93.9%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2018-14933 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2018-14933 (NUUO NVRmini Devices OS Command Injection Vulnerability ) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2024-12-18. CISA required all US federal civilian agencies to remediate this vulnerability by 2025-01-08. The required action was: The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2018-14933?

CVE-2018-14933 is classified as OS Command Injection (CWE-78). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Which products and versions are affected by CVE-2018-14933?

CVE-2018-14933 affects nuuo nvrmini firmware (1 version, e.g. 2016). Check the affected-products list on this page against your deployed version to confirm exposure.

Is there exploit tooling available for CVE-2018-14933?

A Nuclei detection template exists for CVE-2018-14933, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2018-14933 published, and has it been updated?

CVE-2018-14933 was published on August 4, 2018 and was last updated on November 7, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2024-12-18 — agencies required to remediate by 2025-01-08

CVE-2018-14933

CRITICAL

upgrade_handle.php on NUUO NVRmini devices allows Remote Command Execution via shell metacharacters in the uploaddir parameter for a writeuploaddir command.

Published

Aug 4, 2018

Updated

Nov 7, 2025

Affected

0 pkgs

Patched

None yet

Exploits

9 known

EPSS Exploitation Probability

via FIRST.org ↗

93.9%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

upgrade_handle.php on NUUO NVRmini devices allows Remote Command Execution via shell metacharacters in the uploaddir parameter for a writeuploaddir command.

Affected Products

1 product · 1 configurations

nvrmini firmwarenuuo

1 version

2016

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-45070webappshardware✓ Verified

NUUO NVRmini - 'upgrade_handle.php' Remote Command Execution

by Berk Dusunur · Jul 23, 2018

Exploit-DB Source

EDB-46340remotephp✓ Verified

NUUO NVRmini - upgrade_handle.php Remote Command Execution (Metasploit)

by Metasploit · Feb 11, 2019

Exploit-DB Source

Frequently Asked Questions

upgrade_handle.php on NUUO NVRmini devices allows Remote Command Execution via shell metacharacters in the uploaddir parameter for a writeuploaddir command.

O3 Security · Impact-Aware SCA

Is CVE-2018-14933 in your stack?

O3 detects CVE-2018-14933 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works