Integer Underflow (Wrap or Wraparound) Affecting freerdp/freerdp package, versions [,3.29.0)
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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Test your applications- Snyk IDSNYK-UNMANAGED-FREERDPFREERDP-19352816
- published27 Aug 2026
- disclosed1 Aug 2026
- creditUnknown
Introduced: 1 Aug 2026
CVE-2026-67298 (opens in a new tab)How to fix?
Upgrade freerdp/freerdp to version 3.29.0 or higher.
Overview
Affected versions of this package are vulnerable to Integer Underflow (Wrap or Wraparound) via the rail_server_handle_messages process. An attacker can cause a heap buffer overflow and crash the server by sending a specially crafted RAIL PDU header with a manipulated orderLength value that triggers an unsigned integer underflow, leading to an out-of-bounds heap write.