Incorrect Calculation of Buffer Size Affecting freerdp/freerdp package, versions [,3.26.0)
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-17660852
- published28 Jun 2026
- disclosed29 May 2026
- creditUnknown
Introduced: 29 May 2026
CVE-2026-44420 (opens in a new tab)How to fix?
Upgrade freerdp/freerdp to version 3.26.0 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Calculation of Buffer Size in the cliprdr process. An attacker can crash the server or execute arbitrary code by sending a specially crafted CB_CLIP_CAPS message with a manipulated capabilitySetLength value.