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HIGHCVE-2026-21219Published Modified CNA microsoft

CVE-2026-21219: Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability

Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.

Metrics

CVSS v3.1
7.0
Severity
HIGH
Fixed in
10.0.26100.7463
Affected Products
1
Affected packages
  • Microsoft / Windows SDK
    < 10.0.26100.7463 (from 26100)
CVSS Vector
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
CVE-2026-21219: Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability | HarborGuard CVE