Bug 2549780 (CVE-2026-109240) - CVE-2026-109240 freerdp: freerdp: Denial of Service via unvalidated buffer size in USB redirection
Summary: CVE-2026-109240 freerdp: freerdp: Denial of Service via unvalidated buffer si...
Keywords:
Status: NEW
Alias: CVE-2026-109240
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-12 16:48 UTC by OSIDB Bzimport
Modified: 2026-10-13 10:37 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-10-12 16:48:09 UTC 
FreeRDP 3.11.0 before 3.32.1 contains a reachable assertion vulnerability in urb_isoch_transfer that allows malicious RDP servers to crash clients by sending unvalidated OutputBufferSize values. Attackers can send a TS_URB_ISOCH_TRANSFER IN-direction request with OutputBufferSize above INT32_MAX over URBDRC, triggering an assertion in libusb_udev_isoch_transfer that terminates the client.
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