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CVE-2026-5044

HIGH CVSS 4.0: 7.4 EPSS 0.09%
Updated Mar 30, 2026
Belkin
Parameter Value
CVSS 7.4 (HIGH)
Type CWE-787 (Out-of-bounds Write), CWE-119 (Buffer Overflow), CWE-121 (Stack-based Buffer Overflow)
Vendor Belkin
Public PoC No

A security vulnerability has been detected in Belkin F9K1122 1.00.33. This affects the function formSetSystemSettings of the file /goform/formSetSystemSettings of the component Setting Handler. Such manipulation of the argument webpage leads to stack-based buffer overflow.

The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Vulnerable Products 2

Configuration From (including) Up to (excluding)
Belkin F9k1122_Firmware
cpe:2.3:o:belkin:f9k1122_firmware:1.00.33:*:*:*:*:*:*:*
Belkin F9k1122
cpe:2.3:h:belkin:f9k1122:-:*:*:*:*:*:*:*