CVE-2026-109240

LowCVSS 3.1/10Last modified Nov 3, 2026

Description

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.

Metrics

CVSS 3.1 3.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-617

Affected software

VendorProductVersions
FreeRDPFreeRDP>= 3.11.0, < 3.32.1

References

Timeline

Published
Oct 12, 2026
Last modified
Nov 3, 2026
NVD status
Analyzed

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CVE-2026-109240: Low severity, CVSS 3.1 | Vulnix