Buffer Overflow in D-Link DI-8100 File Extension Handler
CVE-2026-7247

8.6HIGH

Key Information:

Vendor

D-link

Status
Vendor
CVE Published:
28 April 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-7247?

A buffer overflow vulnerability exists in the file_exten_asp function of D-Link DI-8100's file_exten.asp file. An attacker can manipulate the 'Name' argument, potentially leading to system instability or unauthorized access through remote exploitation. This vulnerability has been publicly disclosed, emphasizing its significant security implications for users of the affected version.

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.

References

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

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

draw (VulDB User)
.