Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2025-4340— D-Link DIR-890L/DIR-806A1 soap.cgi sub_175C8 command injection

Quick assessment

Affected
D-Link DIR-890L
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

D-Link DIR-890L和D-Link DIR-806A1都是中国友讯（D-Link）公司的产品。D-Link DIR-890L是一款无线路由器。D-Link DIR-806A1是一款双频无线路由器，支持AC750无线速率和USB共享功能。 D-Link DIR-890L和D-Link DIR-806A1存在安全漏洞，该漏洞源于文件/htdocs/soap.cgi中函数sub_175C8存在命令注入漏洞。

CVSS 6.3 · Medium EPSS 4.77% · P91

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-4340

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
D-Link DIR-890L/DIR-806A1 soap.cgi sub_175C8 command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability classified as critical has been found in D-Link DIR-890L and DIR-806A1 up to 100CNb11/108B03. Affected is the function sub_175C8 of the file /htdocs/soap.cgi. The manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
D-Link DIR-890L和D-Link DIR-806A1 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DIR-890L和D-Link DIR-806A1都是中国友讯（D-Link）公司的产品。D-Link DIR-890L是一款无线路由器。D-Link DIR-806A1是一款双频无线路由器，支持AC750无线速率和USB共享功能。 D-Link DIR-890L和D-Link DIR-806A1存在安全漏洞，该漏洞源于文件/htdocs/soap.cgi中函数sub_175C8存在命令注入漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
D-Link DIR-890L 100CNb11 -
D-Link DIR-806A1 100CNb11 -

II. Public POCs for CVE-2025-4340

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-4340

请登录查看更多情报信息。

Vendor Pages for CVE-2025-4340 (1)

Other References for CVE-2025-4340 (1)

Same Patch Batch · D-Link · 2025-05-06 · 11 CVEs total

CVE-2025-4350 8.8 HIGH D-Link DIR-600L wake_on_lan command injection
CVE-2025-4349 8.8 HIGH D-Link DIR-600L formSysCmd command injection
CVE-2025-4348 8.8 HIGH D-Link DIR-600L formSetWanL2TP buffer overflow
CVE-2025-4347 8.8 HIGH D-Link DIR-600L formWlSiteSurvey buffer overflow
CVE-2025-4346 8.8 HIGH D-Link DIR-600L formSetWAN_Wizard534 buffer overflow
CVE-2025-4345 8.8 HIGH D-Link DIR-600L formSetLog buffer overflow
CVE-2025-4344 8.8 HIGH D-Link DIR-600L formLogin buffer overflow
CVE-2025-4343 8.8 HIGH D-Link DIR-600L formEasySetupWizard buffer overflow
CVE-2025-4342 8.8 HIGH D-Link DIR-600L formEasySetupWizard3 buffer overflow
CVE-2025-4341 6.3 MEDIUM D-Link DIR-880L Request Header ssdpcgi sub_16570 command injection

IV. Related Vulnerabilities

Same product: DIR-890L
Same vendor: D-Link
Same weakness: CWE-77

V. Comments for CVE-2025-4340

No comments yet

Leave a comment