Stack-Based Buffer Overflow in D-Link DWR-M960 Router
CVE-2026-2857

8.7HIGH

Key Information:

Vendor

D-link
Status
Dwr-m960
Vendor
CVE Published:
20 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2857?

A vulnerability exists in the D-Link DWR-M960 router's Port Forwarding Configuration Endpoint that allows for stack-based buffer overflow via the manipulation of the submit-url argument in the function sub_423E00 of the /boafrm/formPortFw file. This weakness potentially enables remote attackers to exploit the device, leading to unauthorized access or disruption of service. The exploit for this vulnerability has been publicly disclosed.

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Affected Version(s)

DWR-M960 1.01.07

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-2026-2857 - Proof of Concept

References

https://vuldb.com/?id.347096
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347096
signaturepermissions-required
https://vuldb.com/?submit.754476
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
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

LX-66-LX (VulDB User)
JSON
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