Netcore NBR200V2 1.3.241127.071246 WAN VLAN Reconfiguration /usr/bin/routerd wan_config_set_vlan vlan_wanX.ports buffer overflow

Summaryinfo

A vulnerability classified as very critical has been found in Netcore NBR200V2 1.3.241127.071246. The affected element is the function wan_config_set_vlan of the file /usr/bin/routerd of the component WAN VLAN Reconfiguration. The manipulation of the argument vlan_wanX.ports leads to buffer overflow. This vulnerability is traded as CVE-2026-94100. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in Netcore NBR200V2 1.3.241127.071246 and classified as very critical. This issue affects the function wan_config_set_vlan of the file /usr/bin/routerd of the component WAN VLAN Reconfiguration. The manipulation of the argument vlan_wanX.ports with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The advisory is shared at app.notion.com. The identification of this vulnerability is CVE-2026-94100. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/20/2026).

The exploit is available at app.notion.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Netcore

Name

• NBR200V2

Version

• 1.3.241127.071246

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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CVSSv3info

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Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #892994: netcore NBR200V2 V1.3.241127.071246 Buffer Overflow (by FirmHarness)

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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