Stack-Based Buffer Overflow Vulnerability in Belkin Router
CVE-2025-7088

8.7HIGH

Key Information:

Vendor

Belkin

Status
F9k1122
Vendor
CVE Published:
6 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-7088?

A stack-based buffer overflow vulnerability exists in the Belkin F9K1122 router. This flaw is found in the 'formPPPoESetup' function of the router’s web interface, specifically in the handling of the 'pppUserName' argument. If exploited, this vulnerability can allow an attacker to execute arbitrary code remotely, potentially compromising the router's integrity and security. Despite disclosure attempts to Belkin, the vendor has not responded, increasing the urgency for users to take protective measures.

Affected Version(s)

F9K1122 1.00.33

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-2025-7088 - Proof of Concept

References

https://vuldb.com/?id.315003
vdb-entrytechnical-description
https://vuldb.com/?ctiid.315003
signaturepermissions-required
https://vuldb.com/?submit.603697
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

pjqwudi (VulDB User)
.
CVE-2025-7088 : Stack-Based Buffer Overflow Vulnerability in Belkin Router