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CVE-2026-90704— D-Link DWR-M921 formDiskPartition system command injection

Quick assessment

Affected
D-Link DWR-M921
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 DWR-M921 1.1.52 版本中发现了一个漏洞。受影响的组件是文件 中的 函数。通过操纵参数 可导致命令注入漏洞。该漏洞可被远程利用，且相关的利用方式（exploit）已经公开，可能被攻击者利用。

CVSS 6.6 · Medium
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I. Basic Information for CVE-2026-90704

Vulnerability Information
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Vulnerability Title
D-Link DWR-M921 formDiskPartition system command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in D-Link DWR-M921 1.1.52. The impacted element is the function system of the file /boafrm/formDiskPartition. Performing a manipulation of the argument devicename results in command injection. Remote exploitation of the attack is possible. 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:H/UI:N/S:C/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
D-Link DWR-M921 1.1.52 cpe:2.3:h:d-link:dwr-m921:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-90704

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III. Intelligence Information for CVE-2026-90704

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Proof of Concept for CVE-2026-90704 (1)

Vendor Pages for CVE-2026-90704 (1)

Same Patch Batch · D-Link · 2026-09-14 · 9 CVEs total

CVE-2026-90699 9.9 CRITICAL D-Link DWR-M920 formPinManageSetup sub_41E60C os command injection
CVE-2026-90693 9.9 CRITICAL D-Link DIR-878 WAN Settings SetWan3Settings stack-based overflow
CVE-2026-90692 9.9 CRITICAL D-Link DIR-878 Dynamic DNS IPv6 Settings SetDynamicDNSIPv6Settings stack-based overflow
CVE-2026-90680 9.9 CRITICAL D-Link DIR-823G HNAP1 SetStaticRouteSettings strcpy stack-based overflow
CVE-2026-90703 9.1 CRITICAL D-Link DWR-M921 formDiskCreateShare system os command injection
CVE-2026-90702 9.1 CRITICAL D-Link DWR-M921 formDiskFormat system os command injection
CVE-2026-90706 6.6 MEDIUM D-Link DWR-M921 formWsc os command injection
CVE-2026-90705 6.6 MEDIUM D-Link DWR-M921 Boa Dispatch Table formsysCmd os command injection

IV. Related Vulnerabilities

Same product: DWR-M921
Same vendor: D-Link
Same weakness: CWE-77

V. Comments for CVE-2026-90704

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