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A vulnerability was found in Belkin F9K1122 1.00.33 and classified as critical. This issue affects the function formWanTcpipSetup of the file /goform/formWanTcpipSetup of the component webs. The manipulation of the argument pppUserName leads to stack-based buffer overflow. The attack may be initiated 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.

Eine kritische Schwachstelle wurde in Belkin F9K1122 1.00.33 gefunden. Davon betroffen ist die Funktion formWanTcpipSetup der Datei /goform/formWanTcpipSetup der Komponente webs. Durch das Beeinflussen des Arguments pppUserName mit unbekannten Daten kann eine stack-based buffer overflow-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung.

PUBLISHED Reserved 2025-07-05 | Published 2025-07-06 | Updated 2025-07-07 | Assigner VulDB




HIGH: 8.7CVSS: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
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Stack-based Buffer Overflow

Memory Corruption

Product status

1.00.33
affected

Timeline

2025-07-05:Advisory disclosed
2025-07-05:VulDB entry created
2025-07-05:VulDB entry last update

Credits

pjqwudi (VulDB User) reporter

References

github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_9/9.md exploit

vuldb.com/?id.315005 (VDB-315005 | Belkin F9K1122 webs formWanTcpipSetup stack-based overflow) vdb-entry technical-description

vuldb.com/?ctiid.315005 (VDB-315005 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.603698 (Submit #603698 | Belkin F9K1122 1.00.33 Stack-based Buffer Overflow) third-party-advisory

github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_9/9.md related

github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_9/9.md exploit

cve.org (CVE-2025-7089)

nvd.nist.gov (CVE-2025-7089)

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