CVE-2026-21511
High · 7.5CVSS
7.5
EPSS
4.0%
Published
Feb 10, 2026
CISA due date
—
The record
Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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