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CRITICAL severity

CVE-2016-5674 — Readynas Surveillance

CRITICAL

CVE-2016-5674 is a critical-severity (CVSS 9.8) Improper Input Validation vulnerability in netgear readynas surveillance. 2 public exploit references exist, so weaponization risk is real. No vendor fix is recorded yet; mitigation options are listed below.

__debugging_center_utils___.php in NUUO NVRmini 2 1.7.5 through 3.0.0, NUUO NVRsolo 1.7.5 through 3.0.0, and NETGEAR ReadyNAS Surveillance 1.1.1 through 1.4.1 allows remote attackers…

Published
Updated
Affected
3 products
Patched
See advisory
Exploits
2 known
Exploitation data as of Oct 28, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
94.6%probability of exploitation in next 30 days
Very High Risk0.00%
Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk
87.8%90.6%93.4%96.2%89.4%94.6%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2016-5674 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 396,966 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.

Description

debugging_center_utils_.php in NUUO NVRmini 2 1.7.5 through 3.0.0, NUUO NVRsolo 1.7.5 through 3.0.0, and NETGEAR ReadyNAS Surveillance 1.1.1 through 1.4.1 allows remote attackers to execute arbitrary PHP code via the log parameter.

Affected Products

3 products · 24 configurations
Application
readynas surveillancenetgear
8 versions
1.1.11.1.21.2.0.41.3.2.41.3.2.141.4.01.4.11.4.2
OS
nvrmini 2nuuo
5 versions
1.7.51.7.62.0.02.2.13.0.0
OS
nvrsolonuuo
11 versions
1.752.0.02.0.12.1.52.2.22.32.3.1.202.3.7.92.3.7.102.3.9.63.0.0
Exploits & PoCs
2

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

EDB-40200remotehardware

NUUO NVRmini2 / NVRsolo / Crystal Devices / NETGEAR ReadyNAS Surveillance Application - Multiple Vulnerabilities

by Pedro Ribeiro · Aug 5, 2016

Detection & mitigation playbook

Vendor / appliance
  1. Detect

    Inventory every netgear readynas surveillance deployment and check each version against the affected-products list above.

  2. Remediation status

    No patch has shipped for CVE-2016-5674 yet — track the netgear readynas surveillance advisory for a fixed release and apply the workarounds below in the meantime.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

How to detect CVE-2016-5674

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2016-5674 -u https://target
Template
NUUO NVR camera `debugging_center_utils_.php` - Command Execution
Severity
critical
Impact
Attackers can execute arbitrary PHP code remotely without authentication through command injection, leading to complete server compromise and data breach.
Remediation
Update NUUO NVR devices to the latest firmware version that patches the command injection vulnerability.

Template by ProjectDiscovery nuclei-templates (DhiyaneshDK), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

__debugging_center_utils___.php in NUUO NVRmini 2 1.7.5 through 3.0.0, NUUO NVRsolo 1.7.5 through 3.0.0, and NETGEAR ReadyNAS Surveillance 1.1.1 through 1.4.1 allows remote attackers to execute arbitrary PHP code via the log parameter.
O3 Security · Runtime Protection

Is CVE-2016-5674 being exploited in your environment?

Detect and block the exploit chain at execution, on systems you cannot patch yet.

CVE-2016-5674: Readynas Surveillance (Critical 9.8)