CVE-2026-33952
FreeRDP: DoS via WINPR_ASSERT in rts_read_auth_verifier_no_checks
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
11th
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.
| CWE | CWE-617 |
| Vendor | freerdp |
| Product | freerdp |
| Published | Mar 30, 2026 |
| Last Updated | Apr 2, 2026 |
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Free · No credit card · 60 sec setup
Affected Versions
FreeRDP / FreeRDP
< 3.24.2