CVE-2026-83990

HIGH CVSS 3.1: 7.8 EPSS 0.29%
Updated Sep 08, 2026
Microsoft
Parameter Value
CVSS 7.8 (HIGH)
Type CWE-121 (Stack-based Buffer Overflow)
Vendor Microsoft
Public PoC No

Stack-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1