CVE-2025-11293
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-05

Last updated on: 2025-10-07

Assigner: VulDB

Description
A security vulnerability has been detected in Belkin F9K1015 1.00.10. Affected by this vulnerability is an unknown functionality of the file /goform/formConnectionSetting. The manipulation of the argument max_Conn leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Meta Information
Published
2025-10-05
Last Modified
2025-10-07
Generated
2026-06-16
AI Q&A
2025-10-05
EPSS Evaluated
2026-06-15
NVD
CVE-2025-11293
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
belkin f9k1015_firmware 1.00.10
belkin f9k1015 *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
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.
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.
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Executive Summary

CVE-2025-11293 is a critical buffer overflow vulnerability in the Belkin F9K1015 router version 1.00.10. It occurs in the /goform/formConnectionSetting endpoint, specifically through manipulation of the max_Conn parameter. Improper handling of this parameter allows an attacker to overflow a buffer by copying input data without verifying its size, which can lead to arbitrary code execution or denial of service on the router. [1, 2]

Impact Analysis

This vulnerability can impact you by allowing a remote attacker to execute arbitrary code or cause a denial of service on your Belkin F9K1015 router. This compromises the confidentiality, integrity, and availability of the device, potentially disrupting your network and exposing it to further attacks. [1, 2]

Detection Guidance

This vulnerability can be detected by monitoring or testing access to the endpoint `/goform/formConnectionSetting` on the Belkin F9K1015 router version 1.00.10. Specifically, sending crafted requests manipulating the `max_Conn` parameter to check for buffer overflow behavior can help detect the issue. A proof-of-concept exploit is publicly available on GitHub at https://github.com/panda666-888/vuls/blob/main/belkin/f9k1015/formConnectionSetting.md, which can be used to test the vulnerability. Network scanning tools or custom scripts can be used to send HTTP POST requests to the vulnerable endpoint with varying `max_Conn` values to observe abnormal behavior or crashes. Example command using curl to test the endpoint might be: `curl -X POST http://<router-ip>/goform/formConnectionSetting -d "max_Conn=<value>"` where `<value>` is manipulated to trigger the overflow. [1]

Mitigation Strategies

No official mitigations or patches have been provided by the vendor Belkin. Immediate steps include restricting remote access to the affected router, especially blocking access to the `/goform/formConnectionSetting` endpoint from untrusted networks. Consider isolating the device from the internet or untrusted networks to prevent remote exploitation. Monitoring for unusual behavior or crashes can help detect exploitation attempts. Ultimately, it is recommended to replace the affected product with a secure alternative as no vendor response or fix is available. [2]

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