A heap-based buffer overflow in FreeRDP versions prior to 3.26.0 allows authenticated attackers to potentially achieve remote code execution.

This is a heap-based buffer overflow (CWE-122). The CVSS vector (AV:N/AC:L/PR:L/UI:N) indicates that an attacker with low-level privileges (authenticated) can trigger this vulnerability remotely without requiring user interaction.

The ability for an authenticated attacker to execute arbitrary code poses a severe risk to internal system integrity and lateral movement potential. Given the CVSS score of 8.8, this vulnerability represents a critical security gap that could be weaponized to escalate privileges or exfiltrate sensitive data from the host.

Immediate Action: Upgrade to FreeRDP version 3.26.0 or higher as soon as possible.

Proactive Monitoring: Review authentication logs and session activity for signs of unauthorized privilege escalation or unusual command execution patterns.

Compensating Controls: Implement strict role-based access control (RBAC) to minimize the number of users capable of interacting with the vulnerable RDP components.

Public Exploit Available: Unknown

The vulnerability requires immediate attention for all systems running FreeRDP. Administrators must prioritize the update to version 3.26.0 to ensure that memory safety improvements are active and the heap overflow condition is remediated.