CVE-2019-16057Known exploitationNetwork attack vector

Unauthenticated root command execution via unchecked port

Published Sep 16, 2019 · Updated Oct 21, 2025

Command injection in D-Link DNS-320 2.05.B10 and earlier allows remote attackers to execute root commands via SSL Login. The login_mgr.cgi handler uses the attacker-controlled port parameter in command execution without restricting it to an integer. Exploitation requires network access to the appliance web interface, but no credentials or user interaction, and grants control over appliance commands and stored files.

CVSS severity9.8
Critical
EPSS probability86.49%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in D-Link DNS-320 2.05.B10 and earlier allows remote attackers to execute root commands via SSL Login. The login_mgr.cgi handler uses the attacker-controlled port parameter in command execution without restricting it to an integer. Exploitation requires network access to the appliance web interface, but no credentials or user interaction, and grants control over appliance commands and stored files.

The record

CVE
CVE-2019-16057
Published
Sep 16, 2019
Updated
Oct 21, 2025
Vendor
D-Link
Product
DNS-320
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 2019CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

D-Link · DNS-320version=n/a

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 20262
Sep 23, 2026Unavailable
Sep 24, 20261
Sep 25, 20262
Sep 26, 20261
Sep 27, 20262
Sep 28, 20261
Latest reporting daySep 28, 2026
Latest daily unique IPs1
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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