CVE-2025-4340Public exploitNetwork attack vector

Authenticated command execution via soap.cgi input

Published May 6, 2025 · Updated May 6, 2025

Command injection in D-Link DIR-890L 108B03 and DIR-806A1 100CNb11 allows remote authenticated users to execute arbitrary commands. The sub_175C8 function in /htdocs/soap.cgi passes externally influenced input to a downstream command without neutralizing command elements. Low-privileged access to the SOAP interface is sufficient, and successful exploitation permits reading or changing router data and interrupting service.

CVSS severity6.3
Medium
EPSS probability4.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in D-Link DIR-890L 108B03 and DIR-806A1 100CNb11 allows remote authenticated users to execute arbitrary commands. The sub_175C8 function in /htdocs/soap.cgi passes externally influenced input to a downstream command without neutralizing command elements. Low-privileged access to the SOAP interface is sufficient, and successful exploitation permits reading or changing router data and interrupting service.

The record

CVE
CVE-2025-4340
Published
May 6, 2025
Updated
May 6, 2025
Vendor
D-Link
Product
DIR-806A1
Classifications
CWE-74, CWE-77, T1190, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 6, 2025CVE publishedPublication date reported by the CVE source.
  2. May 6, 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=100CNb11
  2. Affected versionversion=108B03

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DIR-806A1version=100CNb11; version=108B03
D-Link · DIR-890Lversion=100CNb11; version=108B03

Published CVSS scores

5.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDB CNAAV:N/AC:L/Au:S/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1190Exploit Public-Facing Application
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo