CVE-2026-27951

MEDIUM
2026-02-25 [email protected]
5.3
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:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
Patch Released
Feb 27, 2026 - 19:09 nvd
Patch available
PoC Detected
Feb 27, 2026 - 19:09 vuln.today
Public exploit code
CVE Published
Feb 25, 2026 - 22:16 nvd
MEDIUM 5.3

Tags

Integer Overflow Freerdp Redhat Suse

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function `Stream_EnsureCapacity` can create an endless blocking loop. This may affect all client and server implementations using `FreeRDP`. For practical exploitation this will only work on 32bit systems where the available physical memory is `>= SIZE_MAX`. Version 3.23.0 contains a patch. No known workarounds are available.

Analysis

An integer overflow in FreeRDP's Stream_EnsureCapacity function prior to version 3.23.0 can trigger an endless blocking loop, causing denial of service on affected client and server implementations. This vulnerability primarily impacts 32-bit systems with sufficient physical memory and has public exploit code available. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

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Priority Score

47
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +26
POC: +20

Vendor Status

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CVE-2026-27951 vulnerability details – vuln.today
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