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CVE-2026-7027— D-Link DSL-2740R Wireless Setup Section cross site scripting

Quick assessment

Affected
D-Link DSL-2740R
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.

D-Link DSL-2740R是中国友讯（D-Link）公司的一款高性能 ADSL 路由器。 D-Link DSL-2740R EU_01.15版本存在跨站脚本漏洞，该漏洞源于Wireless Setup Section组件对Wireless Network Name参数操作不当，可能导致跨站脚本攻击。

CVSS 2.4 · Low EPSS 0.80% · P55

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-7027

Vulnerability Information
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Vulnerability Title
D-Link DSL-2740R Wireless Setup Section cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in D-Link DSL-2740R EU_01.15. Impacted is an unknown function of the component Wireless Setup Section. Such manipulation of the argument Wireless Network Name leads to cross site scripting. The attack can be executed remotely. The exploit is publicly available and might be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
D-Link DSL-2740R 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DSL-2740R是中国友讯（D-Link）公司的一款高性能 ADSL 路由器。 D-Link DSL-2740R EU_01.15版本存在跨站脚本漏洞，该漏洞源于Wireless Setup Section组件对Wireless Network Name参数操作不当，可能导致跨站脚本攻击。
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 DSL-2740R EU_01.15 -

II. Public POCs for CVE-2026-7027

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III. Intelligence Information for CVE-2026-7027

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Vendor Advisories for CVE-2026-7027 (1)

Vendor Pages for CVE-2026-7027 (1)

Same Patch Batch · D-Link · 2026-04-26 · 4 CVEs total

CVE-2026-7068 8.8 HIGH D-Link DIR-825 nmbd sserver.c NMBD_process buffer overflow
CVE-2026-7067 7.3 HIGH D-Link DIR-822 udhcpd DHCP Service dhcpd.c system command injection
CVE-2026-7026 4.5 MEDIUM D-Link DGS-3420 System Information Settings cross site scripting

IV. Related Vulnerabilities

Same vendor: D-Link
Same weakness: CWE-79

V. Comments for CVE-2026-7027

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