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Freerdp CVE-2026-26271

MEDIUM
Buffer Over-read (CWE-126)
2026-02-25 security-advisories@github.com
Buffer Overflow Freerdp Red Hat Suse
5.3
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SUSE
MEDIUM
qualitative
Red Hat
4.3 MEDIUM
qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

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

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
Patch released
Feb 27, 2026 - 16:46 nvd
Patch available
CVE Published
Feb 25, 2026 - 21:16 nvd
MEDIUM 5.3

DescriptionGitHub Advisory

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a buffer overread in freerdp_image_copy_from_icon_data() (libfreerdp/codec/color.c) can be triggered by crafted RDP Window Icon (TS_ICON_INFO) data. The bug is reachable over the network when a client processes icon data from an RDP server (or from a man-in-the-middle). Version 3.23.0 fixes the issue.

AnalysisAI

FreeRDP versions prior to 3.23.0 are vulnerable to a buffer overread in icon data processing that allows denial of service when clients receive crafted RDP Window Icon data from a server or network attacker. An unauthenticated remote attacker can exploit this vulnerability to crash the FreeRDP client by sending malicious icon structures during the RDP connection. A patch is available in version 3.23.0 and later.

Technical ContextAI

Classified as CWE-126 (Buffer Over-read). Affects Freerdp. FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a buffer overread in freerdp_image_copy_from_icon_data() (libfreerdp/codec/color.c) can be triggered by crafted RDP Window Icon (TS_ICON_INFO) data. The bug is reachable over the network when a client processes icon data from an RDP server (or from a man-in-the-middle). Version 3.23.0 fixes the issue.

RemediationAI

A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.

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Same weakness CWE-126 – Buffer Over-read

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Same technique Buffer Overflow

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CVE-2011-2462 CRITICAL POC
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CVE-2009-0927 HIGH POC
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CVE-2012-1889 HIGH POC
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CVE-2017-11882 HIGH POC
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CVE-2010-3333 HIGH POC
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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 SUSE Linux Enterprise Workstation Extension 15 SP7 Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP7 Fixed
SUSE Linux Enterprise Server 12 SP5-LTSS Fixed
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 Fixed
openSUSE Leap 15.6 Fixed

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CVE-2026-26271 vulnerability details – vuln.today
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