Overview
In the realm of cybersecurity, a recently discovered vulnerability, designated CVE-2025-10756, has emerged as a critical security flaw with severe implications for systems running UTT HiPER 840G up to version 3.1.1-190328. This vulnerability, if exploited, can lead to potential system compromise or data leakage, seriously undermining the integrity of the affected system.
The flaw lies in an unknown function of the file /goform/getOneApConfTempEntry, with the manipulation of the argument tempName leading to a buffer overflow condition. Given the fact that this vulnerability can be exploited remotely and that the exploit has been publicly disclosed, it poses a significant risk to systems that have not yet implemented the necessary protections.
Vulnerability Summary
CVE ID: CVE-2025-10756
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage
Affected Products
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Product | Affected Versions
UTT HiPER 840G | Up to 3.1.1-190328
How the Exploit Works
The vulnerability resides in an unknown function within the file /goform/getOneApConfTempEntry. By manipulating the tempName argument, attackers can trigger a buffer overflow condition. A buffer overflow occurs when more data is written into a block of memory, or buffer, than it can hold. This excess data then overflows into adjacent memory spaces, potentially overwriting other data or causing the system to crash. In this case, this vulnerability can be exploited by a remote attacker, allowing them to execute arbitrary code or cause a denial of service.
Conceptual Example Code
The following is a conceptual example illustrating how an attacker might exploit this vulnerability. This is not a real exploit, but a simplified representation to demonstrate the attack mechanism.
POST /goform/getOneApConfTempEntry HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "tempName": "A"*10000 }In this example, the attacker is sending an unusually large amount of data “A”*10000 as the tempName argument in an attempt to cause a buffer overflow.
Recommendations
Users are strongly advised to apply the vendor patch as soon as it becomes available. In the meantime, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy.
