What’s Vulnerable › Vulnerabilities

CVE-2021-27965

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 11.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-05 · updated 2026-06-17
• Weakness: CWE-120

Description

The MsIo64.sys driver before 1.1.19.1016 in MSI Dragon Center before 2.0.98.0 has a buffer overflow that allows privilege escalation via a crafted 0x80102040, 0x80102044, 0x80102050, or 0x80102054 IOCTL request.

Affected products

• MSI Dragon Center: before 2.0.98.0 — fixed in 2.0.98.0

How to fix

Upgrade to a fixed version: MSI Dragon Center 2.0.98.0. Check the vendor advisory for mitigations.

References

• https://github.com/kronl/cve/tree/master/MSI_Dragon_Center
• https://www.microsoft.com/en-us/p/msi-dragon-center/9nh7n2bv1cqq?activetab=pivot:overviewtab
• https://github.com/kronl/cve/tree/master/MSI_Dragon_Center
• https://www.microsoft.com/en-us/p/msi-dragon-center/9nh7n2bv1cqq?activetab=pivot:overviewtab

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