Out-of-bounds Read Affecting freerdp/freerdp package, versions [,3.31.0)
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-21190772
- published18 Oct 2026
- disclosed15 Sept 2026
- creditUnknown
Introduced: 15 Sep 2026
CVE-2026-91956 (opens in a new tab)How to fix?
Upgrade freerdp/freerdp to version 3.31.0 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read via the func_get_ep_desc function in the URBDRC channel when interface arrays are indexed by position instead of the protocol field InterfaceNumber. An attacker can cause the client to read past allocated heap memory and crash by sending a crafted SELECT_CONFIGURATION message with permuted InterfaceNumber values from a malicious RDP server.