Cyber Resilience

CVE-2024-33344

RCE in Dlink Dir-822\+ Firmware 1.05

Public PoCRCECommand Injection
Published
26 April 2024
Modified
21 May 2025
Patch / advisory
View 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 0.20 97th percentile
Risk Priority 92 floored blend · peak EPSS

Summary

CVE-2024-33344 is a critical-severity Command Injection (CWE-77) vulnerability in Dlink Dir-822\+ 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 3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

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

D-Link DIR-822+ firmware version 1.0.5 contains a command injection vulnerability in the ftext function of upload_firmware.cgi. The flaw, tracked as CVE-2024-33344 and assigned CWE-77, permits unauthenticated remote attackers to supply crafted input that is passed directly to a system shell, resulting in arbitrary command execution. The issue carries a CVSS 3.1 base score of 9.8, reflecting network attack vector, low complexity, and no required privileges or user interaction.

An attacker with network access to the device can send a malicious HTTP request to the firmware upload endpoint and obtain full control of the router, including the ability to read or modify configuration, install persistent malware, or pivot to other hosts on the LAN. No authentication or special privileges are needed, making the exposure particularly severe for internet-facing or locally reachable devices.

The associated EPSS score has reached 0.5369 without a documented rise from a lower baseline. Public references consist of a D-Link support page for the affected model and a GitHub repository containing proof-of-concept details; no vendor advisory describing patches or mitigation steps is provided in the available references.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

D-Link DIR-822+ V1.0.5 was found to contain a command injection in ftext function of upload_firmware.cgi, which allows remote attackers to execute arbitrary commands via shell.

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-2024-33342Same product: Dlink Dir-822\+
CVE-2024-33343Same product: Dlink Dir-822\+
CVE-2024-34950Same product: Dlink Dir-822\+
CVE-2024-44381Same vendor: Dlink
CVE-2025-57105Same vendor: Dlink
CVE-2023-43206Same vendor: Dlink
CVE-2024-7436Same vendor: Dlink
CVE-2025-60675Same vendor: Dlink
CVE-2024-23625Same vendor: Dlink
CVE-2023-0127Same vendor: Dlink

Affected Assets

dlink
dir-822\+ firmware
1.05

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 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover command-construction flaws before deployment.

SI-10 Information Input Validation good match

Input validation directly stops construction of commands from untrusted data containing special elements.

SA-8 Security and Privacy Engineering Principles partial match

Secure engineering principles include proper neutralization and safe command construction practices.

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