Buffer Overflow Vulnerability in D-Link DIR-619L Router
CVE-2025-6373

8.7HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6373?

A stack-based buffer overflow vulnerability exists in D-Link DIR-619L routers, specifically within the formSetWizard1 function of the /goform/formWlSiteSurvey file. This vulnerability arises from improper handling of the curTime argument, allowing remote attackers to execute arbitrary code or cause a denial of service. This issue poses a significant risk as it affects routers that are no longer supported by the vendor, leaving them vulnerable to exploitation.

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-2025-6373 - Proof of Concept

References

https://vuldb.com/?id.313366
vdb-entrytechnical-description
https://vuldb.com/?ctiid.313366
signaturepermissions-required
https://vuldb.com/?submit.597427
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

.