How to fix CVE-2025-21297?

Within 30 days: Identify all affected systems and apply vendor patches as part of regular patch cycle. If patching is delayed, consider network segmentation to limit exposure.

Is Memory Corruption affected by CVE-2025-21297?

CVE-2025-21297 presents notable security risk, a use-after-free vulnerability rated CVSS 8.1. Successful exploitation could significantly impact the confidentiality, integrity, or availability of affected systems.

CVE-2025-21297

HIGH

2025-01-14 [email protected]

8.1

CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:03 vuln.today

Patch Released

Mar 28, 2026 - 18:03 nvd

Patch available

CVE Published

Jan 14, 2025 - 18:15 nvd

HIGH 8.1

Description

Windows Remote Desktop Services Remote Code Execution Vulnerability

Analysis

Windows Remote Desktop Services Remote Code Execution Vulnerability. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

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. Windows Remote Desktop Services Remote Code Execution Vulnerability Affected products include: Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022.

Affected Products

Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Use smart pointers or garbage-collected languages. Set pointers to NULL after freeing. Enable memory sanitizers.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1.7

CVSS: +40

POC: 0

CVE-2025-21297 vulnerability details – vuln.today

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CVE-2025-21297

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Lifecycle Timeline

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CVE-2025-21297

CVSS Vector

Lifecycle Timeline

Tags

Description

Analysis

Technical Context

Affected Products

Remediation

Priority Score

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External POC / Exploit Code