Mend.io Vulnerability Database

What is a CVE vulnerability ID? icon What is a WS vulnerability ID? icon What is an MSC vulnerability ID? icon
New vulnerability? Tell us about it!
icon

We found results for “”

CVE-2026-22856

Good to know:

icon
icon

Date: January 14, 2026

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a race in the serial channel IRP thread tracking allows a heap use‑after‑free when one thread removes an entry from serial->IrpThreads while another reads it. This vulnerability is fixed in 3.20.1.

Severity Score

Related Resources (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-22856
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-w842-c386-fxhv
https://github.com/FreeRDP/FreeRDP/releases/tag/3.20.1
https://www.mend.io/vulnerability-database/CVE-2026-22856

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

Use After Free

CWE-416

Top Fix

icon

Upgrade Version

Upgrade to version https://github.com/FreeRDP/FreeRDP.git - 3.20.1

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

Do you need more information?

Contact Us