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8.6
CVE-2026-94100: Netcore NBR200V2 router allows remote code execution via VLAN setting
CVE-2026-94100 · published 28 days ago
Summary
The router’s WAN VLAN configuration feature can be tricked into overflowing its memory when a specially crafted VLAN request is sent from outside the network. This could let an attacker run their own code on the device. Apply the latest firmware or security update from Netcore and restrict remote management access until the fix is installed.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| netcore | nbr200v2 | 1.3.241127.071246 |
Original advisory text
Netcore NBR200V2 WAN VLAN Reconfiguration routerd wan_config_set_vlan buffer overflow
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.
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker full control
Type
CWE-119Buffer Overflow
CWE-120Classic Buffer Overflow
Timeline
Published21 Sep 2026
Updated19 Oct 2026
First seen21 Sep 2026
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