FreeRDP up to 3.22.x libfreerdp/codec/color.c freerdp_image_copy_from_icon_data buffer over-read

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in FreeRDP up to 3.22.x. Impacted is the function freerdp_image_copy_from_icon_data of the file libfreerdp/codec/color.c. Such manipulation leads to buffer over-read. This vulnerability is listed as CVE-2026-26271. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in FreeRDP up to 3.22.x. It has been rated as problematic. Affected by this issue is the function freerdp_image_copy_from_icon_data of the file libfreerdp/codec/color.c. The manipulation with an unknown input leads to a buffer over-read vulnerability. Using CWE to declare the problem leads to CWE-126. The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. Impacted is availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-26271 since 02/12/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 300182 (Linux Distros Unpatched Vulnerability : CVE-2026-26271), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.23.0 eliminates this vulnerability. Applying the patch f5e20403d6e325e11b68129803f967fb5aeec1cb is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (300182) and CERT Bund (WID-SEC-2026-0514). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source FreeRDP

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer over-read
CWE: CWE-126 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 300182
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-26271

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: FreeRDP 3.23.0
Patch: f5e20403d6e325e11b68129803f967fb5aeec1cb

Timelineinfo

02/12/2026 CVE reserved
02/26/2026 +14 days Advisory disclosed
02/26/2026 +0 days VulDB entry created
05/14/2026 +76 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-hr4m-ph4g-48j6
Status: Confirmed

CVE: CVE-2026-26271 (🔒)
GCVE (CVE): GCVE-0-2026-26271
GCVE (VulDB): GCVE-100-347858
CERT Bund: WID-SEC-2026-0514 - FreeRDP: Mehrere Schwachstellen

Entryinfo

Created: 02/26/2026 01:17
Updated: 05/14/2026 00:22
Changes: 02/26/2026 01:17 (70), 02/26/2026 19:53 (7), 03/01/2026 04:23 (12), 03/02/2026 18:22 (2), 05/14/2026 00:22 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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