FreeRDP up to 3.20.0 MSUSB_INTERFACE_DESCRIPTOR out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in FreeRDP up to 3.20.0. The impacted element is an unknown function. Performing a manipulation of the argument MSUSB_INTERFACE_DESCRIPTOR results in out-of-bounds. This vulnerability is cataloged as CVE-2026-22859. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in FreeRDP up to 3.20.0. This affects an unknown functionality. The manipulation of the argument MSUSB_INTERFACE_DESCRIPTOR with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, the URBDRC client does not perform bounds checking on server‑supplied MSUSB_INTERFACE_DESCRIPTOR values and uses them as indices in libusb_udev_complete_msconfig_setup, causing an out‑of‑bounds read. This vulnerability is fixed in 3.20.1.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-22859 since 01/12/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 297418 (SUSE SLED15 / SLES15 Security Update : freerdp (SUSE-SU-2026:0345-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.20.1 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the databases at Tenable (297418) and EUVD (EUVD-2026-2668). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

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Version

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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: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔒

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: Proof-of-Concept

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 297418
Nessus Name: SUSE SLED15 / SLES15 Security Update : freerdp (SUSE-SU-2026:0345-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: FreeRDP 3.20.1

Timelineinfo

01/12/2026 CVE reserved
01/14/2026 +2 days Advisory disclosed
01/14/2026 +0 days VulDB entry created
01/31/2026 +17 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-56f5-76qv-2r36
Status: Confirmed

CVE: CVE-2026-22859 (🔒)
GCVE (CVE): GCVE-0-2026-22859
GCVE (VulDB): GCVE-100-341139
EUVD: 🔒

Entryinfo

Created: 01/14/2026 21:31
Updated: 01/31/2026 18:33
Changes: 01/14/2026 21:31 (70), 01/15/2026 04:33 (1), 01/17/2026 10:21 (2), 01/21/2026 05:48 (11), 01/31/2026 18:33 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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