Buffer Overflow Vulnerability in D-Link DI-8100 Web Management Interface
CVE-2026-7856

8.6HIGH

Key Information:

Vendor

D-link
Status
Di-8100
Vendor
CVE Published:
5 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7856?

A flaw in D-Link DI-8100 version 16.07.26A1 has been identified within the web management interface at /url_member.asp. A vulnerability exists that allows remote attackers to manipulate the 'Name' argument, resulting in a buffer overflow. This may enable unauthorized access and exploitation, making the device susceptible to potential attacks.

Affected Version(s)

DI-8100 16.07.26A1

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-2026-7856 - Proof of Concept

References

https://vuldb.com/vuln/361133
vdb-entrytechnical-description
https://vuldb.com/vuln/361133/cti
signaturepermissions-required
https://vuldb.com/submit/807849
third-party-advisory

CVSS V4

Score:
8.6
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

draw (VulDB User)
.