CVE-2026-5614
Published: 06 April 2026
Description
A security flaw has been discovered in Belkin F9K1015 1.00.10. Impacted is the function formSetPassword of the file /goform/formSetPassword. The manipulation of the argument webpage results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been…
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released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Mitigating Controls (NIST 800-53 r5)AI
Implements input validation on the 'webpage' argument in formSetPassword to prevent stack-based buffer overflows from malformed inputs.
Deploys memory protection mechanisms such as stack canaries or address space layout randomization to mitigate exploitation of the stack-based buffer overflow.
Establishes processes for timely flaw remediation, including applying vendor patches or replacing vulnerable firmware when available for this unpatched router vulnerability.
Security SummaryAI
CVE-2026-5614 is a stack-based buffer overflow vulnerability affecting the Belkin F9K1015 router on firmware version 1.00.10. The issue lies in the formSetPassword function within the /goform/formSetPassword file, where manipulation of the "webpage" argument triggers the overflow.
The vulnerability enables remote exploitation by attackers with low privileges (PR:L), requiring low attack complexity (AC:L) and no user interaction (UI:N). Successful attacks can result in high impacts to confidentiality, integrity, and availability (C:H/I:H/A:H), earning a CVSS v3.1 base score of 8.8. It maps to CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-121 (Stack-based Buffer Overflow). A public exploit has been released.
Advisories from VulDB indicate the vendor was contacted early regarding disclosure but provided no response. No patches or official mitigations are available, with references pointing to VulDB vulnerability details and a GitHub repository hosting exploit information.
The exploit's public release increases the risk of active attacks against unpatched devices.
Details
- CWE(s)
Affected Products
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The remote stack-based buffer overflow in the public-facing web form (/goform/formSetPassword) on the router directly enables exploitation of a public-facing application for initial access and remote code execution.