CVE-2025-6112
BaseFortify
Publication date: 2025-06-16
Last updated on: 2025-07-18
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tenda | fh1205_firmware | 2.0.0.7 |
| tenda | fh1205 | * |
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 found in the Tenda FH1205 router firmware version 2.0.0.7. It occurs in the function 'fromadvsetlanip' at the '/goform/AdvSetLanip' endpoint, specifically when handling the 'lanMask' parameter. The vulnerability arises because the input buffer is copied to an output buffer without checking if the input size fits, leading to a buffer overflow. This can be exploited remotely by sending specially crafted requests, potentially allowing an attacker to execute arbitrary code or cause a denial of service on the device. [1, 2]
How can this vulnerability impact me? :
Exploitation of this vulnerability can impact the confidentiality, integrity, and availability of the affected router. An attacker can remotely execute arbitrary code or cause a denial of service, which may disrupt network connectivity or allow unauthorized control over the device. This could lead to further compromise of the network environment relying on the router. [1, 2]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection can be performed by monitoring or testing for specially crafted HTTP requests sent to the /goform/AdvSetLanip endpoint with manipulated lanMask parameters that trigger the buffer overflow. Since the vulnerability is triggered remotely via this endpoint, you can use tools like curl or wget to send test requests with oversized lanMask values and observe the router's behavior for crashes or abnormal responses. For example, a command like: curl -X POST http://<router-ip>/goform/AdvSetLanip -d "lanMask=<oversized_payload>" can be used to test. Network intrusion detection systems (NIDS) can also be configured to alert on suspicious POST requests to /goform/AdvSetLanip with unusual parameter sizes. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include replacing the affected Tenda FH1205 router firmware version 2.0.0.7 with a patched or updated version if available. Since no known mitigations or countermeasures have been documented, it is recommended to avoid using the vulnerable device or restrict access to the /goform/AdvSetLanip endpoint by network segmentation or firewall rules to prevent remote exploitation. Monitoring for exploit attempts and disabling remote management features if possible can also reduce risk. [2]