Critical severity · published Sep 21, 2026
CVE-2026-94100
Netcore NBR200V2 WAN VLAN Reconfiguration routerd wan_config_set_vlan buffer overflow
9.9
CVSS
0.8%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NB
NBR200V2 · Netcore
1.3.241127.071246 · source: vendor
Affected product
NB
NBR200V2
Netcore
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