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.
Published: 2026-10-12
Score: 2.3 Low
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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History

Wed, 14 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Low


Tue, 13 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 12 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title FreeRDP 3.11.0 before 3.32.1 Reachable Assertion DoS via urb_isoch_transfer
First Time appeared Freerdp
Freerdp freerdp
Weaknesses CWE-617
CPEs cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Vendors & Products Freerdp
Freerdp freerdp
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-13T18:00:17.250Z

Reserved: 2026-10-12T14:07:56.520Z

Link: CVE-2026-109240

cve-icon Vulnrichment

Updated: 2026-10-13T18:00:11.373Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-12T17:17:14.720

Modified: 2026-10-14T20:11:45.520

Link: CVE-2026-109240

cve-icon Redhat

Severity : Low

Publid Date: 2026-10-12T16:04:17Z

Links: CVE-2026-109240 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-12T18:00:03Z

Weaknesses