CVE-2025-7087
BaseFortify
Publication date: 2025-07-06
Last updated on: 2025-07-09
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| belkin | f9k1122_firmware | 1.00.33 |
| belkin | f9k1122 | * |
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-2025-7087 is a critical stack-based buffer overflow vulnerability in the Belkin F9K1122 router firmware version 1.00.33. It occurs in the formL2TPSetup function when handling the L2TPUserName parameter. The vulnerability arises because the input for L2TPUserName is not properly validated for length, allowing an attacker to supply an excessively long string that overflows the stack buffer. This can cause the router to crash or potentially allow the attacker to execute arbitrary code remotely. [1, 2]
How can this vulnerability impact me? :
This vulnerability can severely impact you by allowing a remote attacker to crash your Belkin F9K1122 router or execute arbitrary code on it without authentication. This compromises the confidentiality, integrity, and availability of the device, potentially leading to loss of network control, data breaches, or further network exploitation. Since no patches or mitigations are currently available, affected devices remain at high risk. [1, 2]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection can be performed by monitoring for unusual or malformed HTTP requests targeting the /goform/formL2TPSetup endpoint with excessively long L2TPUserName parameters, which may indicate exploitation attempts. Since a proof-of-concept exploit is publicly available, network intrusion detection systems (NIDS) can be configured to alert on such patterns. Specific commands are not provided in the resources, but inspecting HTTP traffic to the vulnerable router for suspicious POST requests to /goform/formL2TPSetup with large payloads in L2TPUserName is recommended. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
No patches or countermeasures are currently known for this vulnerability. The vendor did not respond or provide any mitigation. Immediate steps include considering replacing the affected Belkin F9K1122 device to avoid exploitation. Additionally, restricting remote access to the device's web interface and monitoring for exploit attempts can help reduce risk. [2]