CVE-2026-109240

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.

CVSS v3 3.1 LOW

3.1^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.6 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9qqc-m43j-g4r2
https://www.vulncheck.com/advisories/freerdp-3.11.0-before-3.32.1-reachable-assertion-dos-via-urb-isoch-transfer
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9qqc-m43j-g4r2

Configurations

No configuration.

History

13 Oct 2026, 18:17

Type	Values Removed	Values Added
References	~~() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9qqc-m43j-g4r2 -~~	() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9qqc-m43j-g4r2 -

12 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-12 17:17

Updated : 2026-10-14 20:11

NVD link : CVE-2026-109240

Mitre link : CVE-2026-109240

CVE.ORG link : CVE-2026-109240

JSON object : View

Products Affected

No product.

CWE

CWE-617

Reachable Assertion

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