CVE-2025-15430
Remote Buffer Overflow in UTT 512W FTP Server Function
Publication date: 2026-01-02
Last updated on: 2026-02-23
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| unknown_vendor | utt_θΏε_512w | 1.7.7-171114 |
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-2025-15430 is a critical buffer overflow vulnerability in the UTT θΏε 512W router firmware version 1.7.7-171114. It occurs in the strcpy function within the /goform/formFtpServerShareDirSelcet endpoint, where the argument 'oldfilename' is copied without proper bounds checking. This allows an attacker to remotely cause a buffer overflow, potentially leading to system compromise. [2, 3]
How can this vulnerability impact me? :
This vulnerability can be exploited remotely to cause a buffer overflow, which may result in denial of service (DoS) attacks or allow attackers to compromise the confidentiality, integrity, and availability of the affected system. Exploitation is considered easy, and a public proof-of-concept exploit exists. There is no vendor patch or mitigation available, so affected devices remain at risk. [2, 3]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection can be performed by monitoring network traffic for requests to the vulnerable endpoint /goform/formFtpServerShareDirSelcet on UTT θΏε 512W devices running firmware version 1.7.7-171114. Since the exploit is public, scanning for HTTP POST or GET requests targeting this endpoint with unusually long or malformed 'oldfilename' parameters may indicate exploitation attempts. Specific commands depend on your environment, but for example, using curl to test the endpoint or network monitoring tools like tcpdump or Wireshark to capture suspicious traffic can help. Example command to test the endpoint: curl -X POST http://<device-ip>/goform/formFtpServerShareDirSelcet -d "oldfilename=AAAA..." (with a long string to test buffer overflow). Additionally, IDS/IPS rules can be created to detect attempts to exploit this buffer overflow by matching requests to this endpoint with oversized parameters. [2, 3]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include restricting access to the vulnerable device, especially blocking remote access to the /goform/formFtpServerShareDirSelcet endpoint via firewall rules or network segmentation. Since no official patch or vendor response is available, it is recommended to replace the affected UTT θΏε 512W device with a non-vulnerable alternative. Monitoring network traffic for exploitation attempts and applying intrusion detection/prevention systems with custom rules targeting this vulnerability can also help reduce risk. Avoid exposing the device to untrusted networks until replacement or patching is possible. [3]