CVE-2026-67296

High

Description

FreeRDP before 3.29.0 contains a denial of service vulnerability in the RDPEI server channel handler that fails to validate maximum PDU body length before stream allocation. A malicious RDP client can send a header-only RDPEI message with a large declared body length to force excessive memory allocation on the server.

SeverityHigh

CVSS7.5

Exploit probability—

ProductFreerdp

PublishedAug 1, 2026

First seenAug 1, 2026

Weakness typeCWE-20Improper input validation

How to fix

Update

freerdp freerdp3.29.0 or later

Vendor advisories

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-jm8r-22j6-4m4v

Affected products

Product	Affected versions	Fixed in
freerdp freerdp	v < 3.29.0	3.29.0

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