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Windows Server 2022 CVE-2025-47991

| EUVDEUVD-2025-20632 HIGH
Use After Free (CWE-416)
2025-07-08 secure@microsoft.com
Microsoft Use After Free Memory Corruption Denial Of Service Windows Server 2022 Windows 10 1809 Windows Server 2019 Windows 10 21h2 Windows 11 24h2 Windows 11 23h2 Windows Server 2022 23h2 Windows 11 22h2 Windows Server 2016 Windows Server 2025 Windows 10 22h2 Windows 10 1607
7.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.8 HIGH
AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

6
Analysis Updated
Apr 16, 2026 - 06:32 EUVD-patch-fix
executive_summary
Re-analysis Queued
Apr 16, 2026 - 05:29 backfill_euvd_patch
patch_released
Patch available
Apr 16, 2026 - 05:29 EUVD
10.0.14393.8246,10.0.20348.3932,10.0.22631.5624
EUVD ID Assigned
Mar 16, 2026 - 04:21 euvd
EUVD-2025-20632
Analysis Generated
Mar 16, 2026 - 04:21 vuln.today
CVE Published
Jul 08, 2025 - 17:15 nvd
HIGH 7.8

DescriptionCVE.org

Use after free in Microsoft Input Method Editor (IME) allows an authorized attacker to elevate privileges locally.

Analysis

Use after free in Microsoft Input Method Editor (IME) allows an authorized attacker to elevate privileges locally.

Technical ContextAI

A use-after-free vulnerability occurs when a program continues to use a pointer after the referenced memory has been freed, leading to undefined behavior. This vulnerability is classified as Use After Free (CWE-416).

RemediationAI

Use memory-safe languages. Implement proper object lifecycle management. Use static and dynamic analysis tools to detect UAF patterns.

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Same weakness CWE-416 – Use After Free

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CVE-2025-47991 vulnerability details – vuln.today
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