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CVE-2026-33101

HIGH CVSS 3.1: 7.8
Updated Apr 17, 2026
Microsoft
Parameter Value
CVSS 7.8 (HIGH)
Affected Versions before 10.0.28000.1836
Fixed In 10.0.26100.8246
Type CWE-416 (Use After Free)
Vendor Microsoft
Public PoC No

Use after free in Windows Print Spooler Components 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

Weakness Type (CWE)

Vulnerable Products 8

Configuration From (including) Up to (excluding)
Microsoft Windows_11_24h2
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
10.0.26100.8246
Microsoft Windows_11_24h2
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
10.0.26100.8246
Microsoft Windows_11_25h2
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
10.0.26200.8246
Microsoft Windows_11_25h2
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
10.0.26200.8246
Microsoft Windows_11_26h1
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
10.0.28000.1836
Microsoft Windows_11_26h1
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
10.0.28000.1836
Microsoft Windows_Server_2022_23h2
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
10.0.25398.2274
Microsoft Windows_Server_2025
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
10.0.26100.32690