Stack-Based Buffer Overflow Vulnerability in D-Link DIR-619L Router
CVE-2025-6114

8.7HIGH

Key Information:

Vendor

D-link
Status
Dir-619l
Vendor
CVE Published:
16 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6114?

A stack-based buffer overflow vulnerability exists in the D-Link DIR-619L router due to improper handling of inputs in the form_portforwarding function located in /goform/form_portforwarding. This flaw can be exploited remotely, allowing attackers to manipulate specific arguments (ingress_name_%d, sched_name_%d, name_%d) and potentially gain unauthorized access to the affected system. Devices with this vulnerability, particularly those that are no longer under maintenance, are at significant risk, as the flaw has been publicly disclosed and may serve as a target for malicious attacks.

Affected Version(s)

DIR-619L 2.06B01

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-2025-6114 - Proof of Concept

References

https://vuldb.com/?id.312583
vdb-entrytechnical-description
https://vuldb.com/?ctiid.312583
signaturepermissions-required
https://vuldb.com/?submit.592568
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

pjqwudi (VulDB User)
.
CVE-2025-6114 : Stack-Based Buffer Overflow Vulnerability in D-Link DIR-619L Router