CVE-2026-33952
Medium · 6.5CVSS
6.5
EPSS
0.4%
Published
Mar 30, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Tumbleweed | freerdp | 0 | 3.24.2-1.1 |
Related vulnerabilities
- CVE-2026-45700 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp
- CVE-2026-44420 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp
- CVE-2026-44422 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp
- CVE-2026-44421 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp
- CVE-2026-40033 FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdi_CacheToSurface… Also affects freerdp
- CVE-2026-40254 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp
- CVE-2026-33995 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp
- CVE-2026-33987 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp