VDB-341802 · CVE-2026-23883 · EUVD-2026-3312

FreeRDP up to 3.20.x xf_Pointer_New use after free

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in FreeRDP up to 3.20.x. It has been declared as critical. Affected is the function xf_Pointer_New. The manipulation results in use after free. This vulnerability is reported as CVE-2026-23883. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in FreeRDP up to 3.20.x. Affected is the function xf_Pointer_New. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, `xf_Pointer_New` frees `cursorPixels` on failure, then `pointer_free` calls `xf_Pointer_Free` and frees it again, triggering ASan UAF. A malicious server can trigger a client‑side use after free, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-23883 since 01/16/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 297109 (TencentOS Server 4: freerdp (TSSA-2026:0039)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.21.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (297109), EUVD (EUVD-2026-3312) and CERT Bund (WID-SEC-2026-0145). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

Open Source FreeRDP

Productinfo

Type

Remote Access Software

Name

FreeRDP

Version

License

open-source

Website

Product: https://github.com/FreeRDP/FreeRDP/

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: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / 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: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 297109
Nessus Name: TencentOS Server 4: freerdp (TSSA-2026:0039)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: FreeRDP 3.21.0

Timelineinfo

01/16/2026 CVE reserved
01/19/2026 +3 days Advisory disclosed
01/19/2026 +0 days VulDB entry created
01/30/2026 +11 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-23883 (🔒)
GCVE (CVE): GCVE-0-2026-23883
GCVE (VulDB): GCVE-100-341802
EUVD: 🔒
CERT Bund: WID-SEC-2026-0145 - FreeRDP: Mehrere Schwachstellen ermöglichen DoS und Codeausführung

Entryinfo

Created: 01/19/2026 19:38
Updated: 01/30/2026 01:01
Changes: 01/19/2026 19:38 (68), 01/19/2026 22:30 (2), 01/20/2026 07:28 (1), 01/20/2026 22:43 (7), 01/29/2026 02:01 (11), 01/30/2026 01:01 (2)
Complete: 🔍
Cache ID: 216::103

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