Cyber Resilience

CVE-2016-1555

RCE in Netgear Wnap320 Firmware ≤ 3.0.5.0

CISA KEVActive ExploitationEUVD ExploitedPublic PoCRCECommand Injection
Published
21 April 2017
Modified
22 April 2026
KEV Added
25 March 2022
Patch / advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.98 99.9th percentile
Risk Priority 97 floored blend · peak EPSS

Summary

CVE-2016-1555 is a critical-severity Command Injection (CWE-77) vulnerability in Netgear Wnap320 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 0.1% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

The vulnerability CVE-2016-1555 is a command injection flaw present in the files boardData102.php, boardData103.php, boardDataJP.php, boardDataNA.php, and boardDataWW.php. It affects Netgear WN604 devices running firmware prior to 3.3.3 as well as WN802Tv2, WNAP210v2, WNAP320, WNDAP350, WNDAP360, and WNDAP660 devices prior to 3.5.5.0. The issue is tracked as CWE-77 and carries a CVSS v3.1 base score of 9.8.

Unauthenticated attackers with network access can exploit the flaw to execute arbitrary commands on affected devices, resulting in full control over confidentiality, integrity, and availability without any user interaction.

Netgear advisory information referenced at kb.netgear.com/30480 describes the affected models and directs users to updated firmware releases that resolve the command injection vectors. Public exploit code and technical write-ups have been posted to Exploit-DB and Packet Storm, confirming remote unauthenticated command execution is achievable against unpatched units.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

(1) boardData102.php, (2) boardData103.php, (3) boardDataJP.php, (4) boardDataNA.php, and (5) boardDataWW.php in Netgear WN604 before 3.3.3 and WN802Tv2, WNAP210v2, WNAP320, WNDAP350, WNDAP360, and WNDAP660 before 3.5.5.0 allow remote attackers to execute arbitrary commands.

CWE(s)
KEV Date Added
25 March 2022

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
T1059.008 Network Device CLI Execution
Adversaries may abuse scripting or built-in command line interpreters (CLI) on network devices to execute malicious command and payloads.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

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CVE-2023-33533Same vendor: Netgear

Affected Assets

netgear
wnap320 firmware
≤ 3.0.5.0
netgear
wndap350 firmware
≤ 3.0.5.0
netgear
wndap360 firmware
≤ 3.0.5.0
netgear
wndap210v2 firmware
≤ 3.0.5.0
netgear
wn604 firmware
≤ 3.3.2
netgear
wndap660 firmware
≤ 3.0.5.0
netgear
wn802tv2 firmware
≤ 3.0.5.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.2.3
  • V1.2.5
  • V1.2.8
  • V1.2.9

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and neutralization that prevent command injection.

DE.CM-09 partial match
prevents

Runtime monitoring of software and data can detect anomalous command execution resulting from injection.

ID.RA-01 partial match
prevents

Identifying recorded vulnerabilities enables remediation of command-injection flaws before exploitation.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Secure coding standards require proper escaping and parameterization of commands, directly eliminating CWE-77.

finds

Security testing in development catches command-injection vulnerabilities before release.

prevents

Secure development life cycle mandates input validation and command construction practices that directly prevent command injection.

prevents

Application security requirements explicitly call for controls against injection flaws including command injection.

prevents

Secure architecture principles reduce the attack surface but do not prescribe the specific neutralization techniques needed.

none

Environment separation limits the blast radius of an exploited command injection but does not prevent the flaw itself.

References