CVE-2026-1125Public exploitNetwork attack vector

Unauthenticated command execution via wd_enable shell concatenation

Published Jan 18, 2026 · Updated Jan 18, 2026

Command injection in D-Link DIR-823X 250416 allows remote attackers to execute arbitrary commands through the Wi-Fi dog settings endpoint. The goahead handler sub_412E7C concatenates the untrusted wd_enable field into a shell command despite inadequate filtering. An unauthenticated HTTP POST to /goform/set_wifidog_settings is sufficient to obtain command execution and shell access on the router.

CVSS severity7.3
High
EPSS probability15.74%
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 250416 allows remote attackers to execute arbitrary commands through the Wi-Fi dog settings endpoint. The goahead handler sub_412E7C concatenates the untrusted wd_enable field into a shell command despite inadequate filtering. An unauthenticated HTTP POST to /goform/set_wifidog_settings is sufficient to obtain command execution and shell access on the router.

The record

CVE
CVE-2026-1125
Published
Jan 18, 2026
Updated
Jan 18, 2026
Vendor
D-Link
Product
DIR-823X
Classifications
CWE-77, CWE-74, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 18, 2026Record 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=250416

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

D-Link · DIR-823Xversion=250416

Published CVSS scores

7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E: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.

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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
Privilegesunauthenticated
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')
T1190Exploit Public-Facing Application

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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