CVE-2026-73241CWE-287

CVE-2026-73241

High · published August 12, 2026

CVSS v3.1

7.5

EPSS

Percentile

39.5

In the wild

Unconfirmed

What it is

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.30.0, FreeRDP server-side RDSTLS in libfreerdp/core/rdstls.c accepts an attacker-supplied RDSTLS_TYPE_CAPABILITIES PDU while rdstls_server_authenticate is waiting for RDSTLS_TYPE_AUTHREQ, leaving resultCode at RDSTLS_RESULT_SUCCESS and allowing a remote unauthenticated client to bypass the RedirectionGuid, username, domain, or password checks. This issue is fixed in version 3.30.0.

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:H/A:N
CVSS v4.0: Not supplied
EPSS: 0.00468 · 39.5th percentile
Weakness: CWE-287 · Improper Authentication
Published: 2026-08-12T00:18Z

Affected products (1)

Product	Versions	Fixed in
freerdp/freerdp	< 3.30.0	3.30.0

References (5)

https://github.com/FreeRDP/FreeRDP/commit/b05a9510787c83c87ffc5fa8d7cc9f06ed971695 · [email protected]https://github.com/FreeRDP/FreeRDP/pull/13065 · [email protected]https://github.com/FreeRDP/FreeRDP/releases/tag/3.30.0 · [email protected]https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-rqgv-grx4-xm6x · [email protected]https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-rqgv-grx4-xm6x · 134c704f-9b21-4f2e-91b3-4a467353bcc0

EPSS history

Timeline

11 AUG 19:47Z
FreeRDP: RDSTLS server authentication bypass: a credential-less Capabilities PDU is accepted at the auth step (fail-open `resultCode`)
cvelistv5