PT-2026-27015 · Belkin · F9K1122

Ltzhust + 1 · Published 2026-03-22 · Updated 2026-03-23 · CVE-2026-4566

Mitre

CVSS v3.1

8.8

High

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

A flaw has been found in Belkin F9K1122 1.00.33. The affected element is the function formWISP5G of the file /goform/formWISP5G. Executing a manipulation of the argument webpage can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Exploit

Fix

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

CVE-2026-4566

Affected Products

F9K1122

References · 7

• 🔥 https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.md#proof-of-concept-poc · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-4566 · Security Note
• https://vuldb.com/?ctiid.352403 · Note
• https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.md · Note
• https://twitter.com/vuldb/status/2035640518810767724 · Twitter Post
• https://vuldb.com/?submit.775132 · Note
• https://vuldb.com/?id.352403 · Note