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CVE-2026-94101— Netcore NBR200V2 routerd vlan_load_form_uci buffer overflow

Quick assessment

Affected
Netcore NBR200V2
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 NBR200V2 1.3.241127.071246 中检测到一个安全漏洞。受影响的是 文件中的 函数。对参数 的操纵可导致缓冲区溢出漏洞。该攻击可以远程发起。利用代码已公开披露，并可能被实际利用。厂商已在此漏洞披露前早期被联系，但始终未作出任何回应。

CVSS 9.9 · Critical

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-94101

Vulnerability Information
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Vulnerability Title
Netcore NBR200V2 routerd vlan_load_form_uci buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in Netcore NBR200V2 1.3.241127.071246. The affected element is the function vlan_load_form_uci of the file /usr/bin/routerd. The manipulation of the argument wan_num leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may 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:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Netcore NBR200V2 1.3.241127.071246 cpe:2.3:a:netcore:nbr200v2:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-94101

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III. Intelligence Information for CVE-2026-94101

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Security Blog Posts for CVE-2026-94101 (1)

Same Patch Batch · Netcore · 2026-09-21 · 4 CVEs total

CVE-2026-94100 9.9 CRITICAL Netcore NBR200V2 WAN VLAN Reconfiguration routerd wan_config_set_vlan buffer overflow
CVE-2026-94099 9.9 CRITICAL Netcore NBR200V2 Backup Restore restore.cgi command injection
CVE-2026-94098 9.1 CRITICAL Netcore NBR200V2 Firmware Upgrade CGI Endpoint upgrade command injection

IV. Related Vulnerabilities

Same product: NBR200V2
Same vendor: Netcore
Same weakness: CWE-120

V. Comments for CVE-2026-94101

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