Stack-Based Buffer Overflow in Belkin F9K1122 Router
CVE-2025-7093

8.7HIGH

Key Information:

Vendor

Belkin

Status
F9k1122
Vendor
CVE Published:
6 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-7093?

A significant stack-based buffer overflow vulnerability exists in the Belkin F9K1122 router. This flaw is found in the function formSetLanguage within the /goform/formSetLanguage file, which can be exploited through improper handling of the 'webpage' argument. Malicious actors can launch remote attacks by triggering this vulnerability, potentially leading to unauthorized access and control over the affected system. Despite early notifications to the vendor regarding the vulnerability, no response has been received, raising concerns about the ongoing risk to users.

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-2025-7093 - Proof of Concept

References

https://vuldb.com/?id.315007
vdb-entrytechnical-description
https://vuldb.com/?ctiid.315007
signaturepermissions-required
https://vuldb.com/?submit.603710
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-2025-7093 : Stack-Based Buffer Overflow in Belkin F9K1122 Router