Buffer Overflow Vulnerability in Belkin F9K1015 Wi-Fi Router
CVE-2025-11300

8.7HIGH

Key Information:

Vendor

Belkin

Status
F9k1015
Vendor
CVE Published:
5 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11300?

A serious security flaw has been identified in the Belkin F9K1015 Wi-Fi router with firmware version 1.00.10. This vulnerability arises from an unknown function within the /goform/formWlanMP file, where improper handling of the ateFunc argument can lead to a buffer overflow. An attacker can exploit this flaw remotely, allowing them to potentially execute malicious code on the device. The exploit has been publicly disclosed, increasing the urgency for users to secure their devices. Despite early notification to the vendor regarding this issue, there has been no response, leaving users at risk.

Affected Version(s)

F9K1015 1.00.10

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-2025-11300 - Proof of Concept

References

https://vuldb.com/?id.327181
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327181
signaturepermissions-required
https://vuldb.com/?submit.661304
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

panda_0xf1 (VulDB User)
JSON
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CVE-2025-11300 : Buffer Overflow Vulnerability in Belkin F9K1015 Wi-Fi Router