What is CVE-2021-27965?

CVE-2021-27965 is a critical-severity vulnerability in Msi Dragon Center, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2021-03-05.

How severe is CVE-2021-27965?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-27965 known to be exploited?

20 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Msi Dragon Center

CVE-2021-27965

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.

Vulnerability class: Buffer Overflow

EPSS: 0.118 (95.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Msi Dragon_center
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC, Broken Link)
cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-27965?: CVE-2021-27965 is a critical-severity vulnerability in Msi Dragon Center, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2021-03-05.
How severe is CVE-2021-27965?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-27965 known to be exploited?: 20 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.