CVE-2025-21224: Windows Line Printer Daemon (LPD) Service Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 8.1)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2025-Jan

Released

2025-01-14

EPSS Score

0.50% (percentile: 66.1%)

FAQ

How could an attacker exploit this vulnerability? An unauthenticated attacker could send a specially crafted print task to a shared vulnerable Windows Line Printer Daemon (LPD) service across a network. Successful exploitation could result in remote code execution on the server. According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to win a race condition.

Affected Products (17)

Windows

• Windows Server 2022
• Windows Server 2022 (Server Core installation)
• Windows 10 Version 21H2 for 32-bit Systems
• Windows 10 Version 21H2 for ARM64-based Systems
• Windows 10 Version 21H2 for x64-based Systems
• Windows Server 2025 (Server Core installation)
• Windows 11 Version 23H2 for ARM64-based Systems
• Windows 11 Version 23H2 for x64-based Systems
• Windows Server 2022, 23H2 Edition (Server Core installation)
• Windows 11 Version 24H2 for ARM64-based Systems
• Windows 11 Version 24H2 for x64-based Systems
• Windows Server 2025

ESU

• Windows 11 Version 22H2 for ARM64-based Systems
• Windows 11 Version 22H2 for x64-based Systems
• Windows 10 Version 22H2 for x64-based Systems
• Windows 10 Version 22H2 for ARM64-based Systems
• Windows 10 Version 22H2 for 32-bit Systems

Security Updates (5)

• 5049983
• 5049981
• 5050021
• 5050009
• 5049984

Acknowledgments

<a href="https://twitter.com/4zure9">Azure Yang</a> with <a href="http://www.cyberkl.com/">Kunlun Lab</a>

Revision History

• 2025-01-14: Information published.