Cyber Resilience

CVE-2023-44959

RCE in Dlink Dsl-3782 Firmware ≤ 1.03

Public PoCRCECommand Injection
Published
10 October 2023
Modified
21 November 2024
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 0.21 97th percentile
Risk Priority 84 floored blend · peak EPSS

Summary

CVE-2023-44959 is a high-severity Command Injection (CWE-77) vulnerability in Dlink Dsl-3782 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 3% 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.

CVE-2023-44959 is a command-injection vulnerability (CWE-77) affecting D-Link DSL-3782 routers running firmware version 1.03 and earlier. The flaw resides in the Router IP Address fields of the network settings page and permits an authenticated user to supply crafted input that is executed with root privileges on the device.

An attacker who has already obtained valid credentials can reach the affected page over the network with low attack complexity and no user interaction. Successful exploitation grants arbitrary code execution as root, resulting in complete control over confidentiality, integrity, and availability of the router.

Public references consist of GitHub repositories that document the injection vector but do not include vendor advisories, patch availability, or mitigation guidance. The associated EPSS score has reached a peak of 0.4706 with a current value of 0.4419, indicating sustained exploitation interest after disclosure.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

An issue found in D-Link DSL-3782 v.1.03 and before allows remote authenticated users to execute arbitrary code as root via the Router IP Address fields of the network settings page.

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-2023-27216Same product: Dlink Dsl-3782
CVE-2025-25894Same product: Dlink Dsl-3782
CVE-2025-25893Same product: Dlink Dsl-3782
CVE-2025-25895Same product: Dlink Dsl-3782
CVE-2025-25896Same product: Dlink Dsl-3782
CVE-2024-56914Same product: Dlink Dsl-3782
CVE-2025-25892Same product: Dlink Dsl-3782
CVE-2025-25891Same product: Dlink Dsl-3782
CVE-2024-44381Same vendor: Dlink
CVE-2025-57105Same vendor: Dlink

Affected Assets

dlink
dsl-3782 firmware
≤ 1.03

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