CVE-2026-94100 Netcore CVE debrief

Who should care

Defenders responsible for Netcore NBR200V2 devices, especially those exposed to remote access, should assess the vulnerability status and potential impact of this buffer overflow vulnerability.

Why it matters

CVE-2026-94100 is a buffer overflow vulnerability in Netcore NBR200V2 1.3.241127.071246 that can be exploited remotely. Defenders should verify the vulnerability status of exposed devices, assess the feasibility of exploitation, and monitor for potential attacks.

• Verify vulnerability status of exposed Netcore NBR200V2 devices
• Assess feasibility of remote exploitation
• Monitor for potential attacks and anomalous activity

Technical summary

The vulnerability is located in the wan_config_set_vlan function of the /usr/bin/routerd component in Netcore NBR200V2 1.3.241127.071246. A manipulation of the vlan_wanX.ports argument can lead to a buffer overflow. The attack may be performed remotely, and the exploit has been made available to the public. Defenders should prioritize verifying the vulnerability status of Netcore NBR200V2 devices, especially those exposed to remote access, and assess the feasibility of remote exploitation. The CVE record and NVD detail page provide information on the vulnerability, including its CVSS score and weaknesses (CWE-119, CWE-120). However, the vendor's response to the disclosure is unknown, and the exploit's impact on

Defensive priority

Defenders should prioritize verifying the vulnerability status of Netcore NBR200V2 devices, especially those exposed to remote access, and assess the feasibility of remote exploitation.

Recommended defensive actions

• Verify the vulnerability status of Netcore NBR200V2 devices
• Assess remote access exposure and feasibility of exploitation
• Monitor for potential attacks and anomalous activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, including its CVSS score and weaknesses (CWE-119, CWE-120). However, the vendor's response to the disclosure is unknown, and the exploit's reliability and impact require further verification.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.