Buffer Overflow Vulnerability in Belkin F9K1015 Router
CVE-2025-11295

8.7HIGH

Key Information:

Vendor

Belkin

Status
F9k1015
Vendor
CVE Published:
5 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11295?

A vulnerability exists in the Belkin F9K1015 router, specifically in the /goform/formPPPoESetup file, where improper handling of the pppUserName argument can lead to a buffer overflow condition. This flaw allows for remote exploitation, potentially giving attackers unauthorized access to device functionality. Despite early notifications to the vendor, no response was received, which raises concerns about the promptness of issue resolution and user safety. This vulnerability remains critical for users to address immediately.

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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-2025-11295 - Proof of Concept

References

https://vuldb.com/?id.327176
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327176
signaturepermissions-required
https://vuldb.com/?submit.661299
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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