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A vulnerability, which was classified as critical, was found in Belkin F9K1122 1.00.33. This affects the function formPPPoESetup of the file /goform/formPPPoESetup of the component webs. The manipulation of the argument pppUserName leads to stack-based buffer overflow. It is possible to initiate 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.

Es wurde eine kritische Schwachstelle in Belkin F9K1122 1.00.33 gefunden. Dabei betrifft es die Funktion formPPPoESetup der Datei /goform/formPPPoESetup der Komponente webs. Durch das Manipulieren des Arguments pppUserName mit unbekannten Daten kann eine stack-based buffer overflow-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs kann dabei 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_8/8.md exploit

vuldb.com/?id.315003 (VDB-315003 | Belkin F9K1122 webs formPPPoESetup stack-based overflow) vdb-entry technical-description

vuldb.com/?ctiid.315003 (VDB-315003 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.603697 (Submit #603697 | Belkin F9K1122 1.00.33 Stack-based Buffer Overflow) third-party-advisory

github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_8/8.md related

github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_8/8.md exploit

cve.org (CVE-2025-7088)

nvd.nist.gov (CVE-2025-7088)

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