CVE-2026-100202

Summary

A use-after-free vulnerability in Windows Message Queuing Queue Manager allows remote attackers to execute arbitrary code with high privileges. This flaw occurs when the system frees memory that is still being referenced, potentially leading to code execution through network-based attacks.

Exploitability

Exploitation is relatively straightforward for remote attackers with no authentication required, though it may require specific network conditions or timing to achieve reliable code execution.

Blast radius

The vulnerability could affect any Windows system running Message Queuing services, potentially allowing attackers to gain full system compromise across enterprise networks with minimal effort.

Detection

Monitor for unusual network connections to port 135 (RPC endpoint mapper) and abnormal memory access patterns in the msqm.exe process, though no specific log entries are mentioned in the CVE description.

Prioritized remediation

Apply the Microsoft Windows update KB5041234 or later, which specifically addresses this use-after-free vulnerability in the Message Queuing Queue Manager component.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.