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Vulnerability record · CVE-2025-7086 · published 6 July 2025

CVE-2025-7086: Belkin f9k1122 firmware memory buffer overflow vulnerability

Belkin · F9k1122 Firmware

A vulnerability classified as critical has been found in Belkin F9K1122 1.00.33. Affected is the function formPPTPSetup of the file /goform/formPPTPSetup of the component webs. The manipulation of the argument pptpUserName leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public 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 5.5% · top 7.5% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
7.4CVSS 4.0 base score, v2 9.0
5.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability classified as critical has been found in Belkin F9K1122 1.00.33. Affected is the function formPPTPSetup of the file /goform/formPPTPSetup of the component webs. The manipulation of the argument pptpUserName leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public 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/wudipjq/my_vuln/blob/main/Belkin/vuln_6/6.md Exploit
https://github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_6/6.md#poc ExploitThird Party Advisory
https://vuldb.com/?ctiid.315000 Permissions Required
https://vuldb.com/?id.315000 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.603695 Third Party AdvisoryVDB 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-2026-5044Belkin f9k1122 firmware memory buffer overflow vulnerabilityA security vulnerability has been detected in Belkin F9K1122 1.00.33. This affects the function formSetSystemSettings of the file /goform/formSetSyst…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%

Source: NIST National Vulnerability Database (record CVE-2025-7086), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.