Buffer Overflow Vulnerability in D-Link DIR-513 Router
CVE-2025-8169

8.7HIGH

Key Information:

Vendor

D-link
Status
Dir-513
Vendor
CVE Published:
25 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8169?

A buffer overflow vulnerability exists in the D-Link DIR-513 router, specifically in the formSetWanPPTPcallback function within the HTTP POST Request Handler. This vulnerability can be exploited remotely by manipulating the curTime argument, potentially allowing attackers to execute arbitrary code. This issue affects the specified version of the DIR-513 router and is particularly concerning as it impacts devices that are no longer maintained by the vendor, increasing the risk of successful exploitation.

Affected Version(s)

DIR-513 1.10

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-2025-8169 - Proof of Concept

References

https://vuldb.com/?id.317583
vdb-entrytechnical-description
https://vuldb.com/?ctiid.317583
signaturepermissions-required
https://vuldb.com/?submit.620817
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

AttackingLin (VulDB User)
.
CVE-2025-8169 : Buffer Overflow Vulnerability in D-Link DIR-513 Router