Stack-based Buffer Overflow in D-Link DI-8400
CVE-2026-10206

8.7HIGH

Key Information:

Vendor

D-link
Status
Di-8400
Vendor
CVE Published:
1 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-10206?

A stack-based buffer overflow vulnerability exists in the D-Link DI-8400 router, specifically affecting an unknown function within the /dbsrv.asp file. By manipulating the argument 'str', attackers can potentially execute remote exploitation, leading to unauthorized access and control of the affected system. Furthermore, the initial advisory indicates inconsistencies with the parameter names that may be exploited, raising the urgency for users to address this vulnerability. It is essential for users to ensure their devices are updated to mitigate risks associated with this publicly available exploit.

Affected Version(s)

DI-8400 16.07.26A1

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-2026-10206 - Proof of Concept

References

https://vuldb.com/vuln/367486
vdb-entrytechnical-description
https://vuldb.com/vuln/367486/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-10206
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

Zheng (VulDB User)
.