CVE-2026-21219
Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability
CVSS Score
7.0
EPSS Score
0.0%
EPSS Percentile
0th
Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.
| Vendor | microsoft |
| Product | windows sdk |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Jan 13, 2026 |
| Last Updated | Apr 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Windows SDK
26100 < 10.0.26100.7463