CVE-2025-29039Public exploitNetwork attack vector

Authenticated root command execution via NTP year parameter

Published Apr 17, 2025 · Updated Apr 17, 2025

Command injection in D-Link DIR-823X firmware 240802 allows remote authenticated users to execute arbitrary commands as root. The set_ntp handler at /goform/set_ntp incorporates the year value into a shell command without neutralizing command separators. The published proof of concept first authenticates to the management interface; when required NTP fields are present and ntp_client is not 1, injected commands run with root privileges.

CVSS severity7.2
High
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in D-Link DIR-823X firmware 240802 allows remote authenticated users to execute arbitrary commands as root. The set_ntp handler at /goform/set_ntp incorporates the year value into a shell command without neutralizing command separators. The published proof of concept first authenticates to the management interface; when required NTP fields are present and ntp_client is not 1, injected commands run with root privileges.

The record

CVE
CVE-2025-29039
Published
Apr 17, 2025
Updated
Apr 17, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

Public exploit references

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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