Stack-based Buffer Overflow in D-Link DI-8100 Router
CVE-2026-7851
8.6HIGH
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-7851?
A stack-based buffer overflow vulnerability has been identified in the D-Link DI-8100 router, specifically in the sprintf function within the yyxz.asp file. This vulnerability arises from improper handling of the ID argument, allowing an attacker to execute arbitrary code remotely. Exploits for this vulnerability are publicly accessible, which increases the urgency for users to implement necessary mitigations and security updates.
Affected Version(s)
DI-8100 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.
References
CVSS V4
Score:
8.6
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
draw (VulDB User)