Stack-Based Buffer Overflow in Belkin F9K1122 Router Firmware
CVE-2025-7087
Key Information:
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What is CVE-2025-7087?
A stack-based buffer overflow vulnerability exists in the Belkin F9K1122 router firmware version 1.00.33. The issue arises from improper handling of the L2TPUserName parameter in the formL2TPSetup function located in the /goform directory. An attacker can exploit this vulnerability remotely, potentially gaining unauthorized access to the system. The exploit has been made public, highlighting the urgent need for users to secure their devices. Despite early notification to the vendor, no response was received regarding this serious security flaw.
Affected Version(s)
F9K1122 1.00.33
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
CVSS V4
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved