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CVE-2026-85223— D-Link DNS-340L CGI dropbox.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 1.01B04 中发现了一个漏洞。该漏洞影响 CGI Handler 组件中 文件的某个未知功能。通过操纵 / 参数，可导致操作系统命令注入。该攻击可远程发起，且利用方式已公开，有可能被实际利用。

CVSS 9.9 · Critical
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I. Basic Information for CVE-2026-85223

Vulnerability Information
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Vulnerability Title
D-Link DNS-340L CGI dropbox.cgi os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in D-Link DNS-340L 1.01B04. Affected by this issue is some unknown functionality of the file /cgi-bin/dropbox.cgi of the component CGI Handler. Performing a manipulation of the argument callback_url/sync_interval results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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-2026-85223

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III. Intelligence Information for CVE-2026-85223

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Proof of Concept for CVE-2026-85223 (1)

News Coverage for CVE-2026-85223 (1)

Vendor Pages for CVE-2026-85223 (1)

Other References for CVE-2026-85223 (2)

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

CVE-2026-85224 9.1 CRITICAL D-Link DNS-320 ShareCenter File Sharing file_sharing.cgi os command injection
CVE-2026-85222 9.1 CRITICAL D-Link DNS-340L Add-On Center addon_center.cgi os command injection

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-85223

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