CVE-2025-10814Public exploitNetwork attack vector

Authenticated command execution via port parameter

Published Sep 22, 2025 · Updated Sep 22, 2025

Command injection in D-Link DIR-823X firmware 240126, 240802, and 250416 allows remote authenticated users to execute commands. The set_server_settings handler passes the port form value to system after either no filtering or a seven-character denylist that newline-delimited quoted input bypasses. Valid web-management credentials are required, and injected commands run in the goahead server's device context.

CVSS severity8.8
High
EPSS probability6.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Command injection in D-Link DIR-823X firmware 240126, 240802, and 250416 allows remote authenticated users to execute commands. The set_server_settings handler passes the port form value to system after either no filtering or a seven-character denylist that newline-delimited quoted input bypasses. Valid web-management credentials are required, and injected commands run in the goahead server's device context.

The record

CVE
CVE-2025-10814
Published
Sep 22, 2025
Updated
Sep 22, 2025
Vendor
D-Link
Product
DIR-823X
Classifications
CWE-77, CWE-74, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=240126
  2. Affected versionversion=240802
  3. Affected versionversion=250416

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DIR-823Xversion=240126; version=240802; version=250416

Published CVSS scores

2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059.004Unix Shell

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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