Heap-based Buffer Overflow Affecting freerdp/freerdp package, versions [,3.27.0)
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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Start learning- Snyk IDSNYK-UNMANAGED-FREERDPFREERDP-21191615
- published18 Oct 2026
- disclosed19 Aug 2026
- creditUnknown
Introduced: 19 Aug 2026
CVE-2026-55193 (opens in a new tab)How to fix?
Upgrade freerdp/freerdp to version 3.27.0 or higher.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the rpc_channel_read process when handling TS Gateway responses. An attacker can cause a heap buffer overflow by sending a crafted bind_ack message with an excessively large max_xmit_frag value, leading to client crashes or potentially enabling arbitrary code execution through heap corruption.