CVE-2026-110834

FreeRDP from 2.0.0 before 3.32.0 contains a null pointer dereference vulnerability that allows malicious RDP servers to crash clients by sending out-of-lifecycle serial IRPs. Attackers can send IRP_MJ_READ or IRP_MJ_WRITE before create or after close, causing CommReadFile or CommWriteFile to dereference a null handle and terminate clients using Linux serial redirection.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pw4j-ff39-9vjm	Exploit Vendor Advisory
https://www.vulncheck.com/advisories/freerdp-2.0.0-before-3.32.0-denial-of-service-via-serial-irp-null-handle	Third Party Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pw4j-ff39-9vjm	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*

History

23 Oct 2026, 20:52

Type	Values Removed	Values Added
References	~~() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pw4j-ff39-9vjm -~~	() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pw4j-ff39-9vjm - Exploit, Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/freerdp-2.0.0-before-3.32.0-denial-of-service-via-serial-irp-null-handle -~~	() https://www.vulncheck.com/advisories/freerdp-2.0.0-before-3.32.0-denial-of-service-via-serial-irp-null-handle - Third Party Advisory
CPE		cpe:2.3:a:freerdp:freerdp::::::::
First Time		Freerdp Freerdp freerdp

15 Oct 2026, 16:17

Type	Values Removed	Values Added
References	~~() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pw4j-ff39-9vjm -~~	() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pw4j-ff39-9vjm -

14 Oct 2026, 23:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-14 23:17

Updated : 2026-10-23 20:52

NVD link : CVE-2026-110834

Mitre link : CVE-2026-110834

CVE.ORG link : CVE-2026-110834

JSON object : View

Products Affected

freerdp

freerdp

CWE

CWE-476

NULL Pointer Dereference

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