Out-of-bounds Read 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-21190533
- published18 Oct 2026
- disclosed1 Aug 2026
- creditUnknown
Introduced: 1 Aug 2026
CVE-2026-66401 (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 Out-of-bounds Read in the UVC H.264 extension-unit parser due to failure to validate descriptor length before accessing the GUID field. An attacker can cause a heap read beyond allocated bounds and trigger a denial of service by connecting a malicious USB video camera during camera stream setup.