Cyber Resilience

CVE-2023-33533

RCE in Netgear D6220 Firmware 1.0.0.80

Public PoCRCECommand Injection
Published
06 June 2023
Modified
08 January 2025
Patch / advisory
View advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.031 87th percentile
Risk Priority 73 floored blend · peak EPSS

Summary

CVE-2023-33533 is a high-severity Command Injection (CWE-77) vulnerability in Netgear D6220 Firmware. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 13% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV 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.

Netgear D6220 running firmware 1.0.0.80, D8500 running 1.0.3.60, and R6700 and R6900 running 1.0.2.26 are affected by a command-injection vulnerability tracked as CVE-2023-33533 and CWE-77. The flaw resides in the web-management interface and permits an authenticated user to supply crafted values in POST request parameters that are executed by the underlying system.

An attacker who first obtains web-management credentials can leverage the injection to execute arbitrary commands and obtain shell-level access on the device. The vulnerability carries a CVSS 3.1 score of 8.8, reflecting network attack vector, low attack complexity, and low privileges required.

Netgear’s security advisory page and the associated technical report provide the primary references for the issue; administrators should consult these sources for any firmware updates or configuration guidance. The EPSS score remains flat at 0.1117 with no material increase since disclosure.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

Netgear D6220 with Firmware Version 1.0.0.80, D8500 with Firmware Version 1.0.3.60, R6700 with Firmware Version 1.0.2.26, and R6900 with Firmware Version 1.0.2.26 are vulnerable to Command Injection. If an attacker gains web management privileges, they can inject commands into the…

more

post request parameters, gaining shell privileges.

CWE(s)
CWE-77

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.
attack.mitre.org →
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.
attack.mitre.org →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
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.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-50526Same vendor: Netgear
CVE-2024-35518Same vendor: Netgear
CVE-2024-57231Same vendor: Netgear
CVE-2024-54802Same vendor: Netgear
CVE-2024-52022Same vendor: Netgear
CVE-2024-57233Same vendor: Netgear
CVE-2023-33532Same vendor: Netgear
CVE-2025-45492Same vendor: Netgear
CVE-2024-57234Same vendor: Netgear
CVE-2023-0849Same vendor: Netgear

Affected Assets

netgear
d6220 firmware
1.0.0.80
netgear
d8500 firmware
1.0.3.60
netgear
r6700 firmware
1.0.2.26
netgear
r6900 firmware
1.0.2.26

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.

A.8.28 Secure coding mostly match
prevents

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

A.8.29 Security testing in development and acceptance mostly match
finds

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

A.8.25 Secure development life cycle partial match
prevents

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

A.8.26 Application security requirements partial match
prevents

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

A.8.27 Secure system architecture and engineering principles partial match
prevents

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

A.8.31 Separation of development, test and production environments none match
none

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

References