CVE-2025-7790
BaseFortify
Publication date: 2025-07-18
Last updated on: 2025-07-23
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| dlink | di-8100_firmware | 16.07.26a1 |
| dlink | di-8100 | * |
Helpful Resources
Exploitability
| 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-121 | A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-7790 is a critical stack-based buffer overflow vulnerability in the D-Link DI-8100 router firmware version 16.07.26A1. It exists in the HTTP Request Handler component, specifically in the /menu_nat.asp file, where improper handling of HTTP request parameters (out_addr, in_addr, out_port, proto) allows remote attackers to send specially crafted requests that overflow the stack buffer. This can cause the router to crash or become unresponsive. [1, 2]
How can this vulnerability impact me? :
Exploitation of this vulnerability can lead to denial of service (DoS) by crashing the router or making it unresponsive. Additionally, it can compromise the confidentiality, integrity, and availability of the device, potentially allowing attackers to disrupt network operations or gain unauthorized access to sensitive information. The vulnerability can be exploited remotely without authentication, increasing 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 requests targeting the /menu_nat.asp endpoint on D-Link DI-8100 routers, specifically looking for requests with parameters out_addr, in_addr, out_port, and proto containing unusual or crafted input that could trigger the buffer overflow. Additionally, vulnerable devices can be located using Google dorking with queries such as "inurl:menu_nat.asp". Network administrators can use tools like curl or wget to send crafted HTTP requests to test for the vulnerability. For example, a command like `curl -v "http://<router-ip>/menu_nat.asp?out_addr=...&in_addr=...&out_port=...&proto=..."` with crafted parameters might help detect if the device is vulnerable by observing the response or device behavior. [2, 1]
What immediate steps should I take to mitigate this vulnerability?
No known mitigations or countermeasures have been identified for this vulnerability. The recommended immediate step is to replace the affected D-Link DI-8100 router with an alternative device that is not vulnerable. Until replacement, restricting access to the device's management interface from untrusted networks and monitoring for suspicious HTTP requests targeting /menu_nat.asp may help reduce risk. [2]