CVE-2026-1137
Published: 19 January 2026
Summary
CVE-2026-1137 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Utt 520W Firmware. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 31.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly mitigates the buffer overflow vulnerability by enforcing validation of inputs to the strcpy function in /goform/formWebAuthGlobalConfig, preventing improper restriction of operations within memory bounds.
Implements memory protections such as stack canaries, DEP, and ASLR that prevent successful exploitation of the buffer overflow even if invalid input reaches the vulnerable function.
Requires timely remediation of known flaws like this buffer overflow via patches or mitigations, though vendor non-response limits full effectiveness.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Buffer overflow in web interface (/goform/) allows remote exploitation (AV:N/PR:L) for arbitrary code execution from low-privileged access, directly facilitating T1190 (Exploit Public-Facing Application) for initial access or lateral movement and T1068 (Exploitation for Privilege Escalation) due to high C/I/A impact.
NVD Description
A vulnerability was detected in UTT 进取 520W 1.7.7-180627. Affected by this issue is the function strcpy of the file /goform/formWebAuthGlobalConfig. Performing a manipulation results in buffer overflow. The attack is possible to be carried out remotely. The exploit is…
more
now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Deeper analysisAI
CVE-2026-1137 is a buffer overflow vulnerability affecting the UTT 进取 520W device running firmware version 1.7.7-180627. The issue resides in the strcpy function within the /goform/formWebAuthGlobalConfig file, where improper input handling allows manipulation leading to a buffer overflow. This vulnerability, associated with CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-120 (Buffer Copy without Checking Size of Input), carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high severity.
The vulnerability can be exploited remotely by an attacker who has low-privileged access (PR:L), such as a standard user account on the device, with low attack complexity and no user interaction required. Successful exploitation enables the attacker to achieve high impacts on confidentiality, integrity, and availability, potentially allowing arbitrary code execution, data compromise, or denial of service on the affected device.
Advisories from VulDB and a related GitHub repository detail the issue but note that the vendor was contacted early without any response, and no patches or mitigations are available. The exploit is publicly available, increasing the risk of active exploitation.
Notable context includes the public availability of the exploit code, which may facilitate widespread attacks against unpatched UTT 进取 520W devices. No evidence of real-world exploitation in the wild is specified, and the vulnerability has no apparent relevance to AI/ML components.
Details
- CWE(s)