Elevation of Privilege Vulnerability in Microsoft Windows Message Queuing
CVE-2025-62455

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows 10 Version 21h2
Vendor
CVE Published:
9 December 2025

What is CVE-2025-62455?

An improper input validation issue in Microsoft Windows Message Queuing enables an authorized attacker to raise privileges locally. By exploiting this vulnerability, attackers can manipulate input to bypass security mechanisms, ultimately gaining unauthorized access and control over system resources.

Affected Version(s)

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.8688

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.8146

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.6691

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.
CVE-2025-62455 : Elevation of Privilege Vulnerability in Microsoft Windows Message Queuing