CVE-2025-11296
BaseFortify
Publication date: 2025-10-05
Last updated on: 2025-10-07
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| belkin | f9k1015_firmware | 1.00.10 |
| belkin | f9k1015 | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-120 | The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer. |
| CWE-119 | The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a critical buffer overflow in the Belkin F9K1015 router version 1.00.10. It occurs in the /goform/formPPTPSetup endpoint when processing the pptpUserName parameter. The router improperly handles this input by copying it into a buffer without checking if the input size exceeds the buffer size, leading to a buffer overflow. This flaw can be exploited remotely by sending specially crafted requests, potentially allowing an attacker to execute arbitrary code or cause a denial of service. [1, 2]
How can this vulnerability impact me? :
This vulnerability can impact you by allowing a remote attacker to compromise the affected router's confidentiality, integrity, and availability. The attacker could execute arbitrary code on the device or cause it to crash (denial of service), potentially disrupting your network operations or enabling further attacks within your network environment. [1, 2]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by monitoring HTTP requests to the /goform/formPPTPSetup endpoint on the Belkin F9K1015 router, version 1.00.10, specifically looking for unusually long or malformed pptpUserName parameters that could trigger the buffer overflow. Network intrusion detection systems (NIDS) can be configured to alert on such suspicious requests. For manual detection, you can use tools like curl or wget to send crafted requests to the endpoint and observe the router's response or crashes. Example command: curl -X POST http://<router-ip>/goform/formPPTPSetup -d "pptpUserName=$(python3 -c 'print("A"*500)')". Additionally, monitoring router logs for crashes or unexpected reboots may indicate exploitation attempts. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include discontinuing the use of the vulnerable Belkin F9K1015 router version 1.00.10 and replacing it with a secure alternative, as no vendor patches or mitigations are available. As a temporary measure, restrict remote access to the router's management interface, especially blocking access to the /goform/formPPTPSetup endpoint from untrusted networks. Implement network-level protections such as firewall rules or intrusion prevention systems to detect and block exploit attempts targeting the pptpUserName parameter. Monitor the device for signs of compromise and consider isolating it from critical network segments until replacement. [2]