CVE-2025-53143
Published: 12 August 2025
Summary
CVE-2025-53143 is a high-severity Type Confusion (CWE-843) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation of Remote Services (T1210); ranked in the top 4.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-2 (Flaw Remediation) and CM-7 (Least Functionality).
Deeper analysis
CVE-2025-53143 is a type confusion vulnerability, tracked as CWE-843, that affects the Windows Message Queuing component. The flaw permits an authorized attacker to execute arbitrary code over a network and carries a CVSS 3.1 base score of 8.8 reflecting network attack vector, low complexity, and low privileges required.
An authenticated attacker with network access can supply incompatible data types to the message queuing service, resulting in full control over the affected system and high impact to confidentiality, integrity, and availability without user interaction.
Microsoft's advisory published at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53143 addresses the issue and supplies mitigation guidance.
The associated EPSS score has remained flat at a peak of 0.1711 since disclosure, indicating no material increase in observed exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-24324
Vulnerability details
Access of resource using incompatible type ('type confusion') in Windows Message Queuing allows an authorized attacker to execute code over a network.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Type confusion in Windows Message Queuing service directly enables remote exploitation of the service for code execution (T1210).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly remediates the type confusion vulnerability by requiring timely application of Microsoft patches for CVE-2025-53143 in Windows Message Queuing.
Implements memory protections like ASLR, DEP, and control-flow integrity that raise the bar for exploiting type confusion to achieve remote code execution.
Reduces attack surface by disabling or restricting nonessential Windows Message Queuing functionality, preventing low-privilege network access exploitation.