What is the CVSS score of CVE-2026-25952?

CVE-2026-25952 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Windows are affected by CVE-2026-25952?

A critical vulnerability in FreeRDP (CVSS 9.8) allows remote code execution with minimal user interaction, potentially enabling attackers to gain complete control of affected systems.. A patch is available.

Is there a public PoC exploit available for CVE-2026-25952?

Yes, a public proof-of-concept exploit is available for CVE-2026-25952. Prioritise patching immediately. EPSS: 0.1%.

Windows CVE-2026-25952

CRITICAL

Use After Free (CWE-416)

2026-02-25 security-advisories@github.com

Windows Red Hat Freerdp Suse

9.8

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 27, 2026 - 14:55 vuln.today

Public exploit code

Patch released

Feb 27, 2026 - 14:55 nvd

Patch available

CVE Published

Feb 25, 2026 - 21:16 nvd

CRITICAL 9.8

DescriptionNVD

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xf_SetWindowMinMaxInfo dereferences a freed xfAppWindow pointer because xf_rail_get_window in xf_rail_server_min_max_info returns an unprotected pointer from the railWindows hash table, and the main thread can concurrently delete the window (via a window delete order) while the RAIL channel thread is still using the pointer. Version 3.23.0 fixes the issue.

AnalysisAI

Use-after-free in FreeRDP xf_SetWindowMinMaxInfo before version 3.23.0. X11 client window management triggers memory corruption. …

RemediationAI

Within 24 hours: Identify all systems running FreeRDP and assess exposure; isolate or restrict network access to affected servers if patching cannot be completed immediately. Within 7 days: Apply the available vendor patch to all FreeRDP installations and verify successful deployment. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory