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CVE-2026-85222— D-Link DNS-340L Add-On Center addon_center.cgi os command injection

Quick assessment

Affected
D-Link DNS-340L
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 D-Link DNS-340L 版本 1.01B04 中发现了一个安全漏洞。该漏洞影响的是“插件中心”（Add-On Center）组件中 文件的一个未知功能。通过操纵参数 、 、 、 ，可以导致操作系统命令注入（OS Command Injection）。该攻击可以远程发起，且利用方式已公开披露，可能被攻击者利用。

CVSS 9.1 · Critical

Possible ATT&CK Techniques 1 AI

T1059.004 · Unix Shell
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I. Basic Information for CVE-2026-85222

Vulnerability Information
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Vulnerability Title
D-Link DNS-340L Add-On Center addon_center.cgi os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in D-Link DNS-340L 1.01B04. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/addon_center.cgi of the component Add-On Center. Such manipulation of the argument f_name/f_url/f_flag/f_login_user leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
D-Link DNS-340L 1.01B04 cpe:2.3:h:d-link:dns-340l:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-85222

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III. Intelligence Information for CVE-2026-85222

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Vendor Advisories for CVE-2026-85222 (1)

Proof of Concept for CVE-2026-85222 (1)

Vendor Pages for CVE-2026-85222 (1)

Other References for CVE-2026-85222 (2)

Same Patch Batch · D-Link · 2026-09-03 · 3 CVEs total

CVE-2026-85223 9.9 CRITICAL D-Link DNS-340L CGI dropbox.cgi os command injection
CVE-2026-85224 9.1 CRITICAL D-Link DNS-320 ShareCenter File Sharing file_sharing.cgi os command injection

IV. Related Vulnerabilities

Same product: DNS-340L
Same vendor: D-Link
Same weakness: CWE-78

V. Comments for CVE-2026-85222

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