Stack-Based Buffer Overflow Vulnerability in D-Link DWR-M960 Router
CVE-2026-2855

8.7HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2855?

A stack-based buffer overflow vulnerability exists in the D-Link DWR-M960 router, specifically within the DDNS Settings Handler, triggered by improper handling of user input in the submit-url argument. This vulnerability can be exploited remotely, allowing attackers to manipulate the router's functionality, potentially compromising network security. Users are advised to review affected versions and implement necessary security updates promptly.

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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-2026-2855 - Proof of Concept

References

https://vuldb.com/?id.347094
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347094
signaturepermissions-required
https://vuldb.com/?submit.754458
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)
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