CVE-2026-5043: Belkin F9K1122 Parameter formSetPassword stack-based overflow
A weakness has been identified in Belkin F9K1122 1.00.33. The impacted element is the function formSetPassword of the file /goform/formSetPassword of the component Parameter Handler. This manipulation of the argument webpage causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-5043?
CVE-2026-5043 has been classified as a high-severity vulnerability due to its potential for stack-based overflow.
How do I fix CVE-2026-5043?
To fix CVE-2026-5043, update the Belkin F9K1122 router firmware to the latest version available from the manufacturer.
Which versions of Belkin F9K1122 are affected by CVE-2026-5043?
The CVE-2026-5043 vulnerability affects Belkin F9K1122 version 1.00.33.
What type of vulnerability is CVE-2026-5043?
CVE-2026-5043 is a stack-based buffer overflow vulnerability found in the formSetPassword function.
What could an attacker do with CVE-2026-5043?
An attacker exploiting CVE-2026-5043 could potentially execute arbitrary code on the affected Belkin F9K1122 router.