CVE-2026-26986

HIGH
2026-02-25 [email protected]
7.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Feb 27, 2026 - 19:11 vuln.today
Public exploit code
Patch Released
Feb 27, 2026 - 19:11 nvd
Patch available
CVE Published
Feb 25, 2026 - 22:16 nvd
HIGH 7.5

Tags

Windows Freerdp Redhat Suse

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `rail_window_free` dereferences a freed `xfAppWindow` pointer during `HashTable_Free` cleanup because `xf_rail_window_common` calls `free(appWindow)` on title allocation failure without first removing the entry from the `railWindows` hash table, leaving a dangling pointer that is freed again on disconnect. Version 3.23.0 fixes the vulnerability.

Analysis

FreeRDP is a free implementation of the Remote Desktop Protocol. [CVSS 7.5 HIGH]

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Remediation

Within 24 hours: Identify all systems running FreeRDP and assess exposure scope, prioritizing jump servers and administrative access points. Within 7 days: Apply the available vendor patch to all affected FreeRDP installations, beginning with production systems. …

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Priority Score

58
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +38
POC: +20

Vendor Status

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CVE-2026-26986 vulnerability details – vuln.today
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