Vulnerability · Published Jul 6, 2025 · Assigned by VulDB

CVE-2025-7087Belkin F9K1122 webs formL2TPSetup stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in F9K1122 from Belkin. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 13.4% (higher than 96% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)13.4%top 3.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability classified as critical was found in Belkin F9K1122 1.00.33. Affected by this vulnerability is the function formL2TPSetup of the file /goform/formL2TPSetup of the component webs. The manipulation of the argument L2TPUserName leads to stack-based buffer overflow. The attack can be launched 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.

Affected products (as reported)

Vendor	Product	Versions
Belkin	F9K1122	1.00.33

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-315001 | Belkin F9K1122 webs formL2TPSetup stack-based overflow vdb-entry, technical-description
VDB-315001 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #603696 | Belkin F9K1122 1.00.33 Stack-based Buffer Overflow third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_7/7.md related
https://github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_7/7.md#poc exploit