CVE-2026-9627
Buffer Overflow in UTT HiPER 1200GW Web Interface
Publication date: 2026-05-27
Last updated on: 2026-05-27
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| utt | hiper_1200gw | to 2.5.3-170306 (inc) |
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-2026-9627 is a buffer overflow vulnerability found in the UTT HiPER 1200GW router firmware up to version 2.5.3-170306. The flaw exists in the Web Management Interface, specifically in the /goform/setSysAdm endpoint.
An attacker can exploit this vulnerability by sending a specially crafted request with an excessively long password parameter. This triggers a buffer overflow in the strcpy function, which copies data without properly checking the input length.
As a result, the attacker can cause arbitrary code execution or denial of service by overflowing the memory buffer.
How can this vulnerability impact me? :
This vulnerability can have serious impacts including allowing a remote attacker to execute arbitrary code on the affected device or cause it to crash, resulting in denial of service.
Such exploitation could lead to unauthorized control over the router, potentially compromising network security and availability.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by monitoring for unusual or suspicious HTTP POST requests to the /goform/setSysAdm endpoint on the UTT HiPER 1200GW router.
Specifically, detection involves identifying POST requests containing an excessively long password parameter (passwd1), such as a string of 256 characters, which triggers the buffer overflow.
You can use network monitoring tools or packet capture utilities like tcpdump or Wireshark to filter HTTP POST requests to /goform/setSysAdm and inspect the length of the passwd1 parameter.
- Example tcpdump command to capture relevant traffic: tcpdump -i <interface> -A 'tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)' | grep '/goform/setSysAdm'
- Use tools like curl or custom scripts to send test POST requests with long passwd1 parameters to verify if the system is vulnerable.
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include restricting access to the Web Management Interface, especially the /goform/setSysAdm endpoint, to trusted networks or IP addresses only.
Additionally, monitor and block suspicious POST requests with unusually long passwd1 parameters to prevent exploitation.
If possible, update the firmware of the UTT HiPER 1200GW router to a version later than 2.5.3-170306 where this vulnerability is fixed.
Until a patch is available, consider disabling remote management features or the Web Management Interface if not strictly necessary.