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vulnerabilityCVE-2026-33952
Name
CVE-2026-33952
Source
NVD ( link)Debian ( link)
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, an unvalidated auth_length field read from the network triggers a WINPR_ASSERT() failure in rts_read_auth_verifier_no_checks(), causing any FreeRDP client connecting through a malicious RDP Gateway to crash with SIGABRT. This is a pre-authentication denial of service affecting all FreeRDP clients using RPC-over-HTTP gateway transport. The assertion is active in default release builds (WITH_VERBOSE_WINPR_ASSERT=ON). This issue has been patched in version 3.24.2.
Published Date
Updated Date
Workaround
-

Analysis#


Affected Component
Analysis
freerdp
Exploitable

Vulnerability Ratings#


6
CVSSv4
6.5
CVSSv31
6.5
CVSSv31
NaN
other

Others affected components#


Name
Project
Project Version
Version
Status
buildroot
2025.02.x
2.11.8
Exploitable
buildroot
master
2.11.8
Exploitable
yocto
kirkstone
2.6.1
Exploitable
yocto
scarthgap
2.11.8
Exploitable
yocto
scarthgap
3.4.0
Patched

Resolved with patches#


freerdp3 (yocto:scarthgap)

#
Title
Author
Resolve
1
[core,gateway] Check rpcconn_common_hdr_t::auth_length is
Armin Novak <armin.novak@thincast.com>
CVE-2026-33952