CVE-2026-67296CWE-20

CVE-2026-67296

High · published August 1, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
43.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00521 · 43.4th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-08-01T17:16Z
Affected products (1)
ProductVersionsFixed in
freerdp/freerdp< 3.29.03.29.0
References (3)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-jm8r-22j6-4m4v · [email protected]https://www.vulncheck.com/advisories/freerdp-before-denial-of-service-via-rdpei-pdu · [email protected]https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-jm8r-22j6-4m4v · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 01 AUG 12:22Z
    FreeRDP before 3.29.0 Denial of Service via RDPEI PDU
    cvelistv5