CVE-2025-7530
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-2025-7530 is a critical stack-based buffer overflow vulnerability in the Tenda FH1202 router firmware version 1.2.0.14(408). It occurs in the function fromPptpUserAdd within the /goform/PPTPDClient endpoint, where improper handling of the Username argument allows an attacker to overflow a stack buffer by sending crafted input. This can be exploited remotely without authentication, potentially leading to arbitrary code execution or denial of service. [1, 2]
How can this vulnerability impact me? :
This vulnerability can impact you by compromising the confidentiality, integrity, and availability of the affected Tenda FH1202 router. An attacker can remotely exploit the flaw to execute arbitrary code or cause a denial of service, potentially taking control of the device or disrupting its operation. Since the exploit is publicly available and requires no authentication, the risk is significant. [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 requests to the /goform/PPTPDClient endpoint, specifically looking for suspicious or unusually long 'Username' parameters that may trigger the stack-based buffer overflow. Network intrusion detection systems (NIDS) can be configured to alert on such anomalous POST requests to this endpoint. Additionally, reviewing router logs for unusual activity or crashes related to PPTP client user additions may help identify exploitation attempts. Specific commands depend on your network setup, but for example, using curl to test the endpoint with crafted usernames or using tools like tcpdump or Wireshark to capture and analyze traffic to the router's management interface could be useful. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include discontinuing the use of the affected Tenda FH1202 router firmware version 1.2.0.14(408) and replacing it with a secure alternative, as no known mitigations or patches are currently available. Restricting remote access to the router's management interface, especially blocking access to the /goform/PPTPDClient endpoint, can reduce exposure. Monitoring network traffic for exploitation attempts and disabling PPTP client functionality if not needed are also recommended to minimize risk. [1]