Denial of Service Vulnerability in FreeRDP by FreeRDP Project
CVE-2026-67296

8.7HIGH

Key Information:

Vendor

Freerdp

Status
Freerdp
Vendor
CVE Published:
1 August 2026

What is CVE-2026-67296?

FreeRDP prior to version 3.29.0 is susceptible to a denial of service attack through the RDPEI server channel handler. The vulnerability arises due to improper validation of maximum Protocol Data Unit (PDU) body length, enabling a malicious RDP client to send a header-only RDPEI message with an exaggerated declared body length. This action can lead to excessive memory allocation on the server, potentially causing service disruptions and impairing normal operations.

Affected Version(s)

FreeRDP 0 < 3.29.0

FreeRDP 3.29.0

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GH...
vendor-advisory
https://www.vulncheck.com/advisories/freerdp-before-denia...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

1121984919
.