Stack-Based Buffer Overflow in Netcore NR289-GE Routers
CVE-2026-101074

9.3CRITICAL

Key Information:

Vendor

Netcore

Status
Nr289-ge
Vendor
CVE Published:
28 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-101074?

A vulnerability has been discovered in the Netcore NR289-GE router, specifically within the password-check function of the Authentication component located in the /bin/boa file. This issue arises due to improper handling of the Username argument, potentially allowing remote attackers to exploit the router through stack-based buffer overflow techniques. Public exploits for this vulnerability have emerged, putting users at risk if their devices remain unpatched. Efforts to notify the vendor about this security concern went unanswered.

Affected Version(s)

NR289-GE 1.4.5102

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-2026-101074 - Proof of Concept

References

https://vuldb.com/vuln/410945
vdb-entrytechnical-description
https://vuldb.com/vuln/410945/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-101074
third-party-advisory

CVSS V4

Score:
9.3
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

yyycl (VulDB User)
VulDB CNA Team
.