Data Authenticity Vulnerability in D-Link DIR-619L Router
CVE-2025-8978

7.5HIGH

Key Information:

Vendor

D-link
Status
Dir-619l
Vendor
CVE Published:
14 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8978?

A vulnerability exists in the D-Link DIR-619L router's firmware upgrade function, specifically concerning inadequate verification of data authenticity. This flaw could be exploited remotely, allowing attackers to manipulate firmware updates without proper validation. The complexity of successfully exploiting this vulnerability is significant, and it primarily affects devices that are no longer maintained by the vendor. Given that the exploit method has been publicly disclosed, users of the affected product should take this threat seriously and consider upgrading to a supported version or transitioning to a more secure device.

Affected Version(s)

DIR-619L 6.02CN02

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-2025-8978 - Proof of Concept

References

https://vuldb.com/?id.319974
vdb-entrytechnical-description
https://vuldb.com/?ctiid.319974
signaturepermissions-required
https://vuldb.com/?submit.628599
third-party-advisory

CVSS V4

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

IOT_Res (VulDB User)
.
CVE-2025-8978 : Data Authenticity Vulnerability in D-Link DIR-619L Router