Vulnerability · Published Oct 5, 2025 · Assigned by VulDB

CVE-2025-11299Belkin F9K1015 formWanTcpipSetup buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in F9K1015 from Belkin. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.1%top 33.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was identified in Belkin F9K1015 1.00.10. The affected element is an unknown function of the file /goform/formWanTcpipSetup. The manipulation of the argument pppUserName leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might 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	F9K1015	1.00.10

Weakness: CWE-120, 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-327180 | Belkin F9K1015 formWanTcpipSetup buffer overflow vdb-entry, technical-description
VDB-327180 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #661303 | Belkin F9K1015 1.00.10 Buffer Overflow third-party-advisory
https://github.com/panda666-888/vuls/blob/main/belkin/f9k1015/formWanTcpipSetup.md related
https://github.com/panda666-888/vuls/blob/main/belkin/f9k1015/formWanTcpipSetup.md#poc exploit