AUGUST 24, 2026
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Case File

CVE-2026-56297

HIGH · CVSS 7 EPSS 0.36% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-08 · Last synced 2026-08-07

CyberRota Analysis

AI-Generated

FreeRDP versions prior to 3.22.0 are vulnerable to a use-after-free issue caused by improper synchronization in the handling of channel callbacks. This flaw allows a malicious RDP server to exploit a race condition by sending concurrent DYNVC_DATA and DYNVC_CLOSE messages, which could lead to remote code execution or denial of service. Organizations using FreeRDP should prioritize patching to mitigate the risk associated with this vulnerability.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-56297
Severity
HIGH
CVSS
7
EPSS
0.36%

Original NVD Description

FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcman_channel_close and dvcman_call_on_receive due to improper synchronization of channel_callback access. A malicious RDP server can trigger a race condition by sending DYNVC_DATA and DYNVC_CLOSE messages concurrently, causing heap-use-after-free in the drdynvc client thread and potentially enabling remote code execution or denial of service.

Related CVEs

Other vulnerabilities affecting the same vendor(s)