Stack-Based Buffer Overflow in D-Link DIR-619L Router
CVE-2025-6616

8.7HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6616?

A stack-based buffer overflow vulnerability exists in the D-Link DIR-619L router's formSetWAN_Wizard51 function located in the /goform/ file. This security flaw allows an attacker to manipulate the curTime argument, potentially leading to unauthorized remote access. The vulnerability is particularly concerning as it affects devices that are no longer receiving support updates from the vendor, increasing the risk of exploitation.

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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-2025-6616 - Proof of Concept

References

https://vuldb.com/?id.313834
vdb-entrytechnical-description
https://vuldb.com/?ctiid.313834
signaturepermissions-required
https://vuldb.com/?submit.602259
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)
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