Buffer Overflow Vulnerability in Belkin F9K1015 Router
CVE-2025-11296

8.7HIGH

Key Information:

Vendor

Belkin

Status
F9k1015
Vendor
CVE Published:
5 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11296?

A buffer overflow vulnerability exists in the Belkin F9K1015 router, specifically within the /goform/formPPTPSetup file. This flaw allows attackers to manipulate the 'pptpUserName' argument, potentially enabling remote code execution. Despite early disclosure, the vendor has not provided any response or mitigation measures, raising concerns about the security of the affected device.

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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-2025-11296 - Proof of Concept

References

https://vuldb.com/?id.327177
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327177
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https://vuldb.com/?submit.661300
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)
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