Out-of-bounds Write Affecting freerdp/freerdp package, versions [,3.27.1)
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-17950403
- published11 Jul 2026
- disclosed10 Jul 2026
- creditUnknown
Introduced: 10 Jul 2026
NewCVE-2026-55827 (opens in a new tab)How to fix?
Upgrade freerdp/freerdp to version 3.27.1 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write in the RemoteFX decoding process when the /cache:codec:rfx option is enabled. An attacker can execute arbitrary code on the client system by manipulating desktop stride and height values during the decoding of Cache Bitmap V3 data from a malicious Remote Desktop Protocol (RDP) server. This is only exploitable if the client is configured with the non-default /cache:codec:rfx option.