EUVD-2026-22583

| CVE-2026-32199 HIGH
2026-04-14 microsoft
Denial Of Service Use After Free Memory Corruption Microsoft Microsoft 365 Apps For Enterprise Microsoft Excel 2016 Microsoft Office 2019 Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 Microsoft Office Ltsc For Mac 2021 Microsoft Office Ltsc For Mac 2024 Office Online Server
7.8
CVSS 3.1
Temporal: 6.8
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
Analysis Generated
Apr 14, 2026 - 19:35 vuln.today

DescriptionNVD

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

AnalysisAI

Microsoft Excel use-after-free vulnerability (CWE-416) enables arbitrary code execution when a user opens a specially crafted Excel file. Affects Microsoft 365 Apps for Enterprise, Excel 2016, Office 2019, Office LTSC 2021/2024 (Windows and Mac), and Office Online Server. …

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RemediationAI

Within 24 hours: Identify all systems running affected versions (Microsoft 365 Apps, Excel 2016, Office 2019, Office LTSC 2021/2024 on Windows/Mac) using your asset inventory or endpoint management tools. Within 7 days: Deploy vendor-released patches to all affected endpoints using your standard patch management process; prioritize user-facing systems and administrative workstations. …

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EUVD-2026-22583 vulnerability details – vuln.today
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