CVE-2026-5544
Published: 05 April 2026
Summary
CVE-2026-5544 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability. Its CVSS base score is 7.4 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 37.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Deeper analysis
CVE-2026-5544 is a stack-based buffer overflow vulnerability affecting UTT HiPER 1250GW routers in versions up to 3.2.7-210907-180535. The flaw resides in an unknown function within the /goform/formRemoteControl file, where manipulation of the Profile argument triggers the overflow. Published on 2026-04-05, it 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) and is associated with CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-121 (Stack-based Buffer Overflow).
The vulnerability enables remote exploitation by authenticated users with low privileges (PR:L), requiring only network access and no user interaction. Successful attacks can result in high-impact confidentiality, integrity, and availability compromises, potentially allowing arbitrary code execution on the affected device.
Advisories and additional details are available via references including VulDB entries (vuln/355297, submit/782268, and CTI page) and a GitHub issue at jinxjinxboom/cve/issues/1, which may provide further guidance on mitigations or patches.
An exploit for this vulnerability has been publicly released, increasing the risk of real-world attacks against unpatched UTT HiPER 1250GW devices.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-19038
Vulnerability details
A security flaw has been discovered in UTT HiPER 1250GW up to 3.2.7-210907-180535. The impacted element is an unknown function of the file /goform/formRemoteControl. The manipulation of the argument Profile results in stack-based buffer overflow. The attack can be executed…
more
remotely. The exploit has been released to the public and may be used for attacks.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The stack-based buffer overflow in the network-accessible /goform/formRemoteControl web form handler on the router directly enables remote exploitation of a public-facing application for arbitrary code execution (RCE) with high impact.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly addresses the CVE by requiring timely identification, testing, and installation of patches for the stack-based buffer overflow in the router firmware.
Mandates validation of inputs like the Profile argument to prevent buffer overflows from malformed data in /goform/formRemoteControl.
Implements memory protections such as stack canaries, ASLR, and non-executable stacks to mitigate exploitation of the stack-based buffer overflow.