CVE-2025-7553Network attack vector

Authenticated command execution via NTP Server

Published Jul 13, 2025 · Updated Jul 14, 2025

OS command injection in the System Time page of D-Link DIR-818LW firmware 20191215 allows remote authenticated users to execute commands. The undisclosed page handler fails to neutralize command syntax in the attacker-controlled NTP Server value before command execution. Administrative access to the web configuration interface is required, and injected commands run with the firmware service's privileges.

CVSS severity7.2
High
EPSS probability3.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in the System Time page of D-Link DIR-818LW firmware 20191215 allows remote authenticated users to execute commands. The undisclosed page handler fails to neutralize command syntax in the attacker-controlled NTP Server value before command execution. Administrative access to the web configuration interface is required, and injected commands run with the firmware service's privileges.

The record

CVE
CVE-2025-7553
Published
Jul 13, 2025
Updated
Jul 14, 2025
Vendor
D-Link
Product
DIR-818LW
Classifications
CWE-78, CWE-77, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 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=20191215

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

D-Link · DIR-818LWversion=20191215

Published CVSS scores

2.0VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.7VulDB CNACVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
5.8VulDB CNAAV:N/AC:L/Au:M/C:P/I:P/A:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

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.

Technologies

Your stack

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Your stack

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