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CVE-2026-108931— Netcore NR268 DHCP dhcp_dynamicip_show.cgi eval cross site scripting

Quick assessment

Affected

Netcore NR268

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 Netcore NR268 1.7.121109 版本中发现了一个漏洞。该漏洞影响 DHCP 处理组件中的 dhcp_dynamicip_show.cgi 文件的 eval 函数。对参数 Hostname 的操作会导致跨站脚本攻击（XSS）。该攻击可远程发起。此漏洞的利用代码已公开，可能被恶意利用。厂商在早期已被通知此漏洞披露，但未作出任何回应。

CVSS 4.3 · Medium Updated Oct 13, 2026

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

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Vulnerability Information

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Vulnerability Title

Netcore NR268 DHCP dhcp_dynamicip_show.cgi eval cross site scripting

Source: CVE Program / CVE List V5

Vulnerability Description

A vulnerability was found in Netcore NR268 1.7.121109. This affects the function eval of the file dhcp_dynamicip_show.cgi of the component DHCP Handler. The manipulation of the argument Hostname results in cross site scripting. The attack may be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/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

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Netcore	NR268	1.7.121109	`cpe:2.3:a:netcore:nr268::::::::`

II. Public POCs for CVE-2026-108931

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III. Intelligence Information for CVE-2026-108931

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Security Blog Posts for CVE-2026-108931 (1)

🔗 report/NR268/2026.09.14-netcore-nr268-dhcp-dns-stored-xss.md at main · draw-ctf/report · GitHub exploit

https://www.cve.org/CVERecord?id=CVE-2026-108931

Same Patch Batch · Netcore · 2026-10-12 · 8 CVEs total

CVE-2026-108907	10.0 CRITICAL	Netcore NR268 CGI Execution user_ok improper authentication
CVE-2026-108929	9.9 CRITICAL	Netcore NR268 DDNS DDNSset.cgi execvp argument injection
CVE-2026-108906	7.2 HIGH	Netcore NR268 filter_arp_put_file.cgi filter_arp_put_file_cgi out-of-bounds
CVE-2026-108909	4.3 MEDIUM	Netcore NR268 CGI Endpoint cross-site request forgery
CVE-2026-108932	4.3 MEDIUM	Netcore NR268 DHCP Hostname filter_hosts_dump.cgi eval cross site scripting
CVE-2026-108930	2.7 LOW	Netcore NR268 DDNS ddns_wan_list_show.cgi ddns_wan_list_show information disclosure
CVE-2026-108908	2.4 LOW	Netcore NR268 Web UI l7_call_board_user_set.cgi eval cross site scripting

IV. Related Vulnerabilities

Same product: NR268

Same vendor: Netcore

Same weakness: CWE-79

V. Comments for CVE-2026-108931

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2026-108931— Netcore NR268 DHCP dhcp_dynamicip_show.cgi eval cross site scripting

Quick assessment

Possible ATT&CK Techniques 1 AI

I. Basic Information for CVE-2026-108931

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2026-108931

III. Intelligence Information for CVE-2026-108931

Security Blog Posts for CVE-2026-108931 (1)

Same Patch Batch · Netcore · 2026-10-12 · 8 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2026-108931

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