Stack-based Buffer Overflow in Belkin F9K1015 Router
CVE-2026-5614

8.7HIGH

Key Information:

Vendor

Belkin

Status
F9k1015
Vendor
CVE Published:
6 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5614?

A vulnerability exists in the Belkin F9K1015 router, specifically within the formSetPassword function of the /goform/formSetPassword file. This issue allows for a stack-based buffer overflow due to manipulation of the webpage argument, potentially enabling remote attackers to exploit the device. The flaw was publicly disclosed, and despite contacting the vendor, no response was received. Users should be aware of the risks associated with this vulnerability and take appropriate measures.

Affected Version(s)

F9K1015 1.00.10

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.

CVE-2026-5614 - Proof of Concept

References

https://vuldb.com/vuln/355405
vdb-entrytechnical-description
https://vuldb.com/vuln/355405/cti
signaturepermissions-required
https://vuldb.com/submit/785554
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LtzHuster (VulDB User)
VulDB CNA Team
.