CVE-2026-44803

high Microsoft
CVSS v3 Base Score
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.3%
Exploitation probability in 30 days
Top 75% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Published: June 9, 2026 (30 days ago)
Last Modified: June 19, 2026
Vendor: Microsoft
Source: NVD

Description

Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.

CWE

CWE-190

Affected Products

microsoft excelmicrosoft powerpointmicrosoft wordmicrosoft windows 10 1607microsoft windows 10 1809microsoft windows 10 21h2microsoft windows 10 22h2microsoft windows 11 23h2microsoft windows 11 24h2microsoft windows 11 25h2

References

🔗 msrc.microsoft.com