Buffer Overflow Vulnerability in Netcore NBR200V2 Router Software
CVE-2026-94101

9.4CRITICAL

Key Information:

Vendor

Netcore

Status
Nbr200v2
Vendor
CVE Published:
21 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-94101?

A buffer overflow vulnerability exists in the Netcore NBR200V2 router's vlan_load_form_uci function located in /usr/bin/routerd. Manipulation of the wan_num argument could allow an attacker to execute a remote exploit, potentially compromising system integrity. This issue has been publicly disclosed, and despite vendor notification, no response has been received regarding mitigation steps.

Affected Version(s)

NBR200V2 1.3.241127.071246

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-94101 - Proof of Concept

References

https://vuldb.com/vuln/408030
vdb-entrytechnical-description
https://vuldb.com/vuln/408030/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-94101
third-party-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

FirmHarness (VulDB User)
VulDB CNA Team
.