Cyber Resilience

CVE-2019-16057

RCE in Dlink Dns-320 Firmware ≤ 2.05.b10

CISA KEVActive ExploitationEUVD ExploitedPublic PoCRansomware-linkedRCECommand Injection
Published
16 September 2019
Modified
06 November 2025
KEV Added
15 April 2022
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 0.87 99.7th percentile
Risk Priority 97 floored blend · peak EPSS

Summary

CVE-2019-16057 is a critical-severity OS Command Injection (CWE-78) vulnerability in Dlink Dns-320 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 0.3% 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-2019-16057 is an OS command injection flaw (CWE-78) in the login_mgr.cgi script of D-Link DNS-320 network-attached storage devices running firmware versions through 2.05.B10. It received a CVSS 3.1 base score of 9.8, driven by network attack vector, low complexity, and no requirements for authentication or user interaction.

Remote attackers can supply crafted input to the script to execute arbitrary operating-system commands on the device. This grants full read, write, and control capabilities, resulting in complete compromise of confidentiality, integrity, and availability.

The issue is listed in CISA's Known Exploited Vulnerabilities catalog, confirming observed real-world exploitation. Public references include detailed technical write-ups of the remote-code-execution path and an FTC enforcement action against D-Link that references the affected product line.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

The login_mgr.cgi script in D-Link DNS-320 through 2.05.B10 is vulnerable to remote command injection.

CWE(s)
CWE-78
KEV Date Added
15 April 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.
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 →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
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 →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2020-25506Same product: Dlink Dns-320both on KEV
CVE-2019-17621Same vendor: Dlinkboth on KEV
CVE-2016-11021Same vendor: Dlinkboth on KEV
CVE-2019-20500Same vendor: Dlinkboth on KEV
CVE-2018-6530Same vendor: Dlinkboth on KEV
CVE-2026-8272Same product: Dlink Dns-320
CVE-2022-26258Same vendor: Dlinkboth on KEV
CVE-2019-16920Same vendor: Dlinkboth on KEV
CVE-2026-8273Same product: Dlink Dns-320
CVE-2020-9377Same vendor: Dlinkboth on KEV

Affected Assets

dlink
dns-320 firmware
≤ 2.05.b10

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)
  • V1.2.5
  • V1.2.8
  • V15.2.5

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

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

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).

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.8.29 Security testing in development and acceptance mostly match
finds

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References