CVE-2026-94100: Buffer Overflow in Netcore NBR200V2
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.
AI Analysis
Technical Summary
This vulnerability affects Netcore NBR200V2 version 1.3.241127.071246. The issue lies in the WAN VLAN reconfiguration component, where improper handling of the vlan_wanX.ports argument in the wan_config_set_vlan function leads to a buffer overflow. The vulnerability is remotely exploitable without user interaction and requires low privileges. The vendor was notified but has not responded or issued a fix. Public exploit code is available, increasing the risk of attacks.
Potential Impact
Successful exploitation can lead to a buffer overflow, potentially allowing remote attackers to execute arbitrary code or cause a denial of service on the affected device. Given the high CVSS score of 9.4 and the availability of public exploits, this vulnerability poses a critical risk to affected systems.
Mitigation Recommendations
No official fix or patch is currently available from the vendor. Users should monitor vendor communications for updates. Until a patch is released, consider restricting remote access to the device's WAN VLAN configuration interface to trusted networks only to reduce exposure.
CVE-2026-94100: Buffer Overflow in Netcore NBR200V2
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.
CVSS v4.0
Score 9.4critical
Affected software
Netcore
NBR200V2
cpe:2.3:a:netcore:nbr200v2:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Netcore NBR200V2 version 1.3.241127.071246. The issue lies in the WAN VLAN reconfiguration component, where improper handling of the vlan_wanX.ports argument in the wan_config_set_vlan function leads to a buffer overflow. The vulnerability is remotely exploitable without user interaction and requires low privileges. The vendor was notified but has not responded or issued a fix. Public exploit code is available, increasing the risk of attacks.
Potential Impact
Successful exploitation can lead to a buffer overflow, potentially allowing remote attackers to execute arbitrary code or cause a denial of service on the affected device. Given the high CVSS score of 9.4 and the availability of public exploits, this vulnerability poses a critical risk to affected systems.
Mitigation Recommendations
No official fix or patch is currently available from the vendor. Users should monitor vendor communications for updates. Until a patch is released, consider restricting remote access to the device's WAN VLAN configuration interface to trusted networks only to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-20T09:19:12.571Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab07e9555bf5e2cf5d07a88
Added to database: 09/21/2026, 00:47:17 UTC
Last enriched: 09/21/2026, 01:01:31 UTC
Last updated: 09/21/2026, 01:31:19 UTC
Views: 18
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