CVE-2025-53784

HIGH
2025-08-12 [email protected]
8.4
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 19:06 vuln.today
CVE Published
Aug 12, 2025 - 18:15 nvd
HIGH 8.4

Tags

Memory Corruption Denial Of Service Use After Free Microsoft 365 Apps Office Long Term Servicing Channel

Description

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

Analysis

Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as Use After Free (CWE-416), which allows attackers to access freed memory to execute arbitrary code or crash the application. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Affected products include: Microsoft 365 Apps, Microsoft Office Long Term Servicing Channel.

Affected Products

Microsoft 365 Apps, Microsoft Office Long Term Servicing Channel.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use smart pointers or garbage-collected languages. Set pointers to NULL after freeing. Enable memory sanitizers.

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +42
POC: 0

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CVE-2025-53784 vulnerability details – vuln.today
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