Reachable Assertion Affecting freerdp/freerdp package, versions [,3.24.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-FREERDPFREERDP-15857129
- published31 Mar 2026
- disclosed31 Mar 2026
- creditSebasteuo
Introduced: 31 Mar 2026
CVE-2026-33952 (opens in a new tab)How to fix?
Upgrade freerdp/freerdp to version 3.24.2 or higher.
Overview
Affected versions of this package are vulnerable to Reachable Assertion in the rts_read_auth_verifier_no_checks process when an unvalidated auth_length field is read from the network, leading to a WINPR_ASSERT() failure. An attacker can cause connected clients to crash by sending specially crafted data through a malicious RDP Gateway. This is only exploitable if the assertion is active in default release builds with WITH_VERBOSE_WINPR_ASSERT=ON and the client is using RPC-over-HTTP gateway transport.