Stack-Based Buffer Overflow in D-Link DI-8100 Router
CVE-2025-7790

8.7HIGH

Key Information:

Vendor

D-link
Status
Di-8100
Vendor
CVE Published:
18 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-7790?

A stack-based buffer overflow vulnerability has been identified in the D-Link DI-8100 router, specifically within the /menu_nat.asp file of the HTTP Request Handler component. Attackers exploiting this vulnerability can remotely manipulate parameters such as out_addr, in_addr, out_port, and proto, potentially leading to unauthorized execution of code or service disruption. The public disclosure of this exploit allows malicious actors to actively target affected devices, emphasizing the need for immediate remediation.

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-2025-7790 - Proof of Concept

References

https://vuldb.com/?id.316851
vdb-entrytechnical-description
https://vuldb.com/?ctiid.316851
signaturepermissions-required
https://vuldb.com/?submit.616196
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

XiDP (VulDB User)
.