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Vulnerability record · CVE-2026-5044 · published 29 March 2026

CVE-2026-5044: Belkin f9k1122 firmware memory buffer overflow vulnerability

Belkin · F9k1122 Firmware

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.

7.4 CVSS 4.0 High EPSS 1.1% · top 36.9% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
7.4CVSS 4.0 base score, v2 9.0
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_155/README.md ExploitThird Party Advisory
https://vuldb.com/submit/779125 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/353967 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/353967/cti Permissions RequiredVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.4CVE-2026-5608Belkin f9k1122 firmware memory buffer overflow vulnerabilityA vulnerability was detected in Belkin F9K1122 1.00.33. Affected is the function formWlanSetup of the file /goform/formWlanSetup. The manipulation of…EPSS 1.1%7.4CVE-2026-5043Belkin f9k1122 firmware memory buffer overflow vulnerabilityA weakness has been identified in Belkin F9K1122 1.00.33. The impacted element is the function formSetPassword of the file /goform/formSetPassword of…EPSS 1.1%7.4CVE-2026-5042Belkin f9k1122 firmware memory buffer overflow vulnerabilityA security flaw has been discovered in Belkin F9K1122 1.00.33. The affected element is the function formCrossBandSwitch of the file /goform/formCross…EPSS 1.1%7.4CVE-2026-4566Belkin f9k1122 firmware memory buffer overflow vulnerabilityA flaw has been found in Belkin F9K1122 1.00.33. The affected element is the function formWISP5G of the file /goform/formWISP5G. Executing a manipula…EPSS 1.1%7.4CVE-2025-7094Belkin f9k1122 firmware memory buffer overflow vulnerabilityA vulnerability was found in Belkin F9K1122 1.00.33. It has been rated as critical. Affected by this issue is the function formBSSetSitesurvey of the…EPSS 0.99%7.4CVE-2025-7093Belkin f9k1122 firmware memory buffer overflow vulnerabilityA vulnerability was found in Belkin F9K1122 1.00.33. It has been declared as critical. Affected by this vulnerability is the function formSetLanguage…EPSS 5.8%7.4CVE-2025-7092Belkin f9k1122 firmware memory buffer overflow vulnerabilityA vulnerability has been found in Belkin F9K1122 1.00.33 and classified as critical. This vulnerability affects the function formWlanSetupWPS of the …EPSS 5.8%7.4CVE-2025-7091Belkin f9k1122 firmware memory buffer overflow vulnerabilityA vulnerability was found in Belkin F9K1122 1.00.33. It has been classified as critical. Affected is the function formWlanMP of the file /goform/form…EPSS 6.5%

Source: NIST National Vulnerability Database (record CVE-2026-5044), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.