Integer Overflow Vulnerability in MSI Dragon Center's NTIOLib_X64.sys Library
CVE-2026-82908

9.3CRITICAL

Key Information:

Vendor

Msi

Status
Dragon Center
Vendor
CVE Published:
31 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-82908?

A vulnerability exists in MSI Dragon Center, found in the MmioWritePath function of the NTIOLib_X64.sys library. This issue arises from improper handling of argument counts and element sizes, leading to integer overflow. The exploit requires local access to the affected system, and while the vulnerability has been disclosed publicly, MSI has not provided a response following the disclosure.

Affected Version(s)

Dragon Center 2.0.155

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-2026-82908 - Proof of Concept

References

https://vuldb.com/vuln/397288
vdb-entrytechnical-description
https://vuldb.com/vuln/397288/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-82908
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
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

chanhokim (VulDB User)
VulDB CNA Team
.