CVE-2025-6399
BaseFortify
Publication date: 2025-06-21
Last updated on: 2025-06-25
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| totolink | x15_firmware | 1.0.0-b20230714.1105 |
| totolink | x15 | * |
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?
CVE-2025-6399 is a critical buffer overflow vulnerability in the TOTOLINK X15 router version 1.0.0-B20230714.1105. It occurs in the HTTP POST request handler at the endpoint /boafrm/formIPv6Addr, specifically involving the submit-url parameter. The vulnerability arises because the device copies input data to an output buffer without checking if the input size exceeds the buffer size, leading to a buffer overflow. This flaw can be exploited remotely by sending a specially crafted HTTP POST request, potentially allowing attackers to compromise the device. [1, 2]
How can this vulnerability impact me? :
This vulnerability can impact you by allowing remote attackers to cause a denial of service (DoS) on the TOTOLINK X15 router or potentially compromise its confidentiality, integrity, and availability. Exploiting the buffer overflow could lead to device crashes or unauthorized control over the device. There are no known patches or countermeasures currently, so the affected device may need to be replaced to mitigate the risk. [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 POST requests sent to the endpoint /boafrm/formIPv6Addr, specifically looking for suspicious or unusually large payloads in the submit-url parameter that could trigger the buffer overflow. Network intrusion detection systems (NIDS) can be configured to alert on POST requests to this endpoint. Additionally, capturing traffic with tools like tcpdump or Wireshark and filtering for POST requests to /boafrm/formIPv6Addr can help identify potential exploit attempts. Example command to capture such traffic: tcpdump -i <interface> -A 'tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)' | grep '/boafrm/formIPv6Addr'. However, no specific detection commands or signatures are provided in the resources. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include restricting access to the vulnerable endpoint /boafrm/formIPv6Addr by implementing network-level controls such as firewall rules to block or limit HTTP POST requests to this path from untrusted sources. Since no patches or countermeasures are currently available, replacing the affected TOTOLINK X15 router with a non-vulnerable device is recommended. Monitoring for exploit attempts and applying network segmentation to isolate the device can also reduce risk. [2]