CVE-2026-94100
Netcore NBR200V2 WAN VLAN Reconfiguration routerd wan_config_set_vlan buffer overflow
- State
- Published
- Severity
- 9.4 Critical
- Published
- Sep 21, 2026
- Updated
- Sep 21, 2026
- Reserved
- Sep 20, 2026
Description
A weakness has been identified in Netcore NBR200V2 1.3.241127.071246. Impacted is the function wan_config_set_vlan of the file /usr/bin/routerd of the component WAN VLAN Reconfiguration. Executing a manipulation of the argument vlan_wanX.ports can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.4 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P | VulDB |
| 3.1 | 9.9 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 9.9 Critical | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 9.0 High | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
NBR200V2Netcore |
|
References
- VDB-408029 | Netcore NBR200V2 WAN VLAN Reconfiguration routerd wan_config_set_vlan buffer overflowvdb-entrytechnical-description
- VDB-408029 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-94100 | CVE Analysis and Reportthird-party-advisory
- Submit #892994 | netcore NBR200V2 V1.3.241127.071246 Buffer Overflowthird-party-advisory
- https://app.notion.com/p/Netcore-NBR200V2-Vul-8-39f797159f158003ad3eff2fd36342b6exploit
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