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CVE-2026-90880— D-Link DSL-3782 Diagnostics Diagnostics.asp system command injection

Quick assessment

Affected
D-Link DSL-3782
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 DSL-3782（2016-07-28 版本）中发现了一个安全缺陷。该问题影响了 /cgi-bin/New_GUI/Set/Diagnostics.asp 文件中“诊断”组件的系统功能。对参数 Addr 的操作可导致命令注入漏洞。该攻击可远程发起。相关的利用代码（exploit）已公开，可能被用于发动攻击。

CVSS 7.4 · High
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I. Basic Information for CVE-2026-90880

Vulnerability Information
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Vulnerability Title
D-Link DSL-3782 Diagnostics Diagnostics.asp system command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in D-Link DSL-3782 2016-07-28. This issue affects the function system of the file /cgi-bin/New_GUI/Set/Diagnostics.asp of the component Diagnostics. Performing a manipulation of the argument Addr results in command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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 DSL-3782 2016-07-28 cpe:2.3:h:d-link:dsl-3782:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-90880

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III. Intelligence Information for CVE-2026-90880

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Proof of Concept for CVE-2026-90880 (1)

Vendor Pages for CVE-2026-90880 (1)

Same Patch Batch · D-Link · 2026-09-15 · 4 CVEs total

CVE-2026-91001 9.9 CRITICAL D-Link DI-8400 DDNS Configuration ddns.asp ddns_asp stack-based overflow
CVE-2026-91003 9.1 CRITICAL D-Link DI-8300 CGI Service rzgl.asp rzgl_asp stack-based overflow
CVE-2026-90881 5.3 MEDIUM D-Link DIR-882 CGI Binary dllog.cgi main information disclosure

IV. Related Vulnerabilities

Same vendor: D-Link
Same weakness: CWE-77

V. Comments for CVE-2026-90880

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