Stack-Based Buffer Overflow in D-Link DWR-M960 Products
CVE-2026-2856

8.7HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2856?

A stack-based buffer overflow vulnerability exists in the D-Link DWR-M960 1.01.07 specifically in the Filter Configuration Endpoint. The flaw lies within the function sub_424AFC located in the file /boafrm/formFilter. An attacker can manipulate the 'submit-url' argument, potentially allowing for remote execution of malicious payloads. The exploit has been publicly disclosed, raising concerns for users regarding unauthorized access and possible system compromise.

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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-2026-2856 - Proof of Concept

References

https://vuldb.com/?id.347095
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347095
signaturepermissions-required
https://vuldb.com/?submit.754474
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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