CVE-2026-94101 Netcore CVE debrief

Who should care

Defenders responsible for Netcore NBR200V2 1.3.241127.071246 systems should assess exposure and prioritize verification of inventory and potential impact. Defenders should also monitor for potential exploitation attempts and review compensating controls for exposed systems.

Why it matters

CVE-2026-94101 is a buffer overflow vulnerability in Netcore NBR200V2 1.3.241127.071246 that can be exploited remotely. Defenders should verify inventory, assess potential impact, and monitor for exploitation attempts.

• Verify inventory for Netcore NBR200V2 1.3.241127.071246 systems
• Assess potential impact of buffer overflow vulnerability on systems
• Monitor for potential exploitation attempts

Technical summary

The vlan_load_form_uci function in /usr/bin/routerd on Netcore NBR200V2 1.3.241127.071246 is vulnerable to a buffer overflow attack. The exploit has been publicly disclosed, and defenders should verify the presence of this vulnerability in their inventory and assess the potential impact on their systems. The vulnerability has a CVSS score of 8.6 and is considered HIGH severity. The affected element is the function vlan_load_form_uci of the file /usr/bin/routerd. The manipulation of the argument wan_num leads to buffer overflow.

Defensive priority

Defenders should prioritize verifying the presence of this vulnerability in their inventory and assessing the potential impact on their systems.

Recommended defensive actions

• Verify the presence of Netcore NBR200V2 1.3.241127.071246 in your inventory
• Assess the potential impact of the buffer overflow vulnerability on your systems
• Monitor for potential exploitation attempts
• 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 and CWE-120). The vulnerability affects Netcore NBR200V2 1.3.241127.071246 systems. Defenders should verify the presence of this vulnerability in their inventory and assess the potential impact on their systems. The exploit has been publicly disclosed, and defenders should monitor for potential exploitation attempts.

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.