CVE-2025-7529
BaseFortify
Publication date: 2025-07-13
Last updated on: 2025-07-16
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | fh1202_firmware | 1.2.0.14\(408\) |
| tenda | fh1202 | * |
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-2025-7529 is a critical stack-based buffer overflow vulnerability in the Tenda FH1202 router firmware version 1.2.0.14(408). It occurs in the fromNatlimit function accessed via the /goform/Natlimit endpoint, where manipulation of the 'page' parameter with crafted input causes a stack-based buffer overflow. This overflow can allow an attacker to execute arbitrary code or cause a denial of service on the device. The vulnerability can be exploited remotely without authentication. [1, 2]
How can this vulnerability impact me? :
This vulnerability can severely impact you by allowing a remote attacker to execute arbitrary code on the affected Tenda FH1202 router or cause a denial of service, potentially compromising the confidentiality, integrity, and availability of the device and the network it supports. Since it can be exploited without authentication, it poses a high risk of unauthorized access and disruption. [1, 2]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by checking if the Tenda FH1202 router is running firmware version 1.2.0.14(408) and by testing the /goform/Natlimit endpoint for a stack-based buffer overflow via the "page" parameter. A practical detection method involves sending crafted HTTP requests to the /goform/Natlimit endpoint with various payloads in the "page" parameter to observe abnormal behavior or crashes. For example, using curl or similar tools to send requests: curl -X POST http://<router-ip>/goform/Natlimit -d "page=<payload>" where <payload> is a string designed to trigger overflow. Monitoring for crashes or unexpected responses can indicate vulnerability presence. Note that a public proof-of-concept exploit is available on GitHub, which can be referenced for crafting detection payloads. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include avoiding exposure of the affected Tenda FH1202 router firmware version 1.2.0.14(408) to untrusted networks, especially the internet, to prevent remote exploitation. Since no known mitigations or patches are currently available, it is recommended to replace the affected device or firmware with a secure version if available. Network segmentation and firewall rules blocking access to the /goform/Natlimit endpoint can also reduce risk. Monitoring network traffic for suspicious requests targeting this endpoint is advised. [2]