CVE-2025-5672
BaseFortify
Publication date: 2025-06-05
Last updated on: 2025-06-17
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| totolink | n302r_plus_firmware | to 3.4.0-b20201028 (exc) |
| totolink | n302r_plus | * |
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-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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-5672 is a critical buffer overflow vulnerability in the TOTOLINK N302R Plus router firmware up to version 3.4.0-B20201028. It exists in the HTTP POST request handler at the /boafrm/formFilter endpoint, where improper handling of the "url" argument allows an attacker to send a specially crafted POST request that triggers a buffer overflow. This can cause the router to crash or become unresponsive, and may allow the attacker to execute arbitrary commands on the device, gaining unauthorized control. [1, 2]
How can this vulnerability impact me? :
This vulnerability can impact you by compromising the confidentiality, integrity, and availability of your TOTOLINK N302R Plus router. An attacker can remotely exploit it to cause a denial of service (DoS) by crashing the router or making it unresponsive. More severely, the attacker may execute arbitrary commands on the device, potentially gaining unauthorized control over the router and its network traffic. [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 for malicious HTTP POST requests sent to the /boafrm/formFilter endpoint, specifically those manipulating the "url" argument to trigger a buffer overflow. Network intrusion detection systems (NIDS) or web application firewalls (WAF) can be configured to alert on suspicious POST requests to this path. Additionally, you can use tools like curl or wget to test the endpoint manually by sending crafted POST requests to /boafrm/formFilter and observing the router's response or crash behavior. Example command to test the endpoint: curl -X POST http://<router-ip>/boafrm/formFilter -d "url=<malicious_payload>". Replace <malicious_payload> with a large string to attempt triggering the overflow. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include discontinuing the use of the affected TOTOLINK N302R Plus router firmware versions up to 3.4.0-B20201028, as no known countermeasures or patches are available. It is recommended to replace the affected device with an alternative product to avoid exploitation. Additionally, restricting remote access to the router's management interface and implementing network-level protections such as firewalls or intrusion prevention systems to block malicious POST requests to /boafrm/formFilter can help reduce risk temporarily. [2]