CVE-2026-83990
Microsoft Graphics Component Elevation of Privilege Vulnerability
CVSS v3
7.8
HIGH
EPSS Score
0.3 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Stack-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.
Technical details
- Published
- 2026-09-08
- Last Modified
- 2026-09-08
Frequently asked questions
What is CVE-2026-83990?
Stack-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.
Is CVE-2026-83990 actively exploited?
Active exploitation of CVE-2026-83990 has not been confirmed. Its EPSS score was 0.3% on 2026-09-28, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-83990?
CVE-2026-83990 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2026-83990 affecting your environment?
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