FreeRDP up to 3.23.x freerdp_bitmap_decompress_planar out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in FreeRDP up to 3.23.x. It has been rated as problematic. This affects the function freerdp_bitmap_decompress_planar. This manipulation causes out-of-bounds. This vulnerability is handled as CVE-2026-31897. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in FreeRDP up to 3.23.x. Affected by this vulnerability is the function freerdp_bitmap_decompress_planar. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. The summary by CVE is:

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, there is an out-of-bounds read in freerdp_bitmap_decompress_planar when SrcSize is 0. The function dereferences *srcp (which points to pSrcData) without first verifying that SrcSize >= 1. When SrcSize is 0 and pSrcData is non-NULL, this reads one byte past the end of the source buffer. This vulnerability is fixed in 3.24.0.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-31897 since 03/09/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 302235 (Linux Distros Unpatched Vulnerability : CVE-2026-31897), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.24.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (302235), EUVD (EUVD-2026-12064) and CERT Bund (WID-SEC-2026-0725). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora 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: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔒

CNA Base Score: 2.9
CNA Vector (GitHub_M): 🔒

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / 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: 302235
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-31897

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: FreeRDP 3.24.0

Timelineinfo

03/09/2026 CVE reserved
03/13/2026 +4 days Advisory disclosed
03/13/2026 +0 days VulDB entry created
05/13/2026 +61 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-31897 (🔒)
GCVE (CVE): GCVE-0-2026-31897
GCVE (VulDB): GCVE-100-351001
EUVD: 🔒
CERT Bund: WID-SEC-2026-0725 - FreeRDP: Mehrere Schwachstellen

Entryinfo

Created: 03/13/2026 20:16
Updated: 05/13/2026 22:13
Changes: 03/13/2026 20:16 (64), 03/13/2026 20:44 (1), 03/13/2026 20:51 (7), 03/15/2026 04:38 (1), 03/16/2026 06:50 (2), 03/20/2026 10:45 (12), 05/13/2026 22:13 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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