CVE-2026-109240
LOW
CVSS 3.1
Published: 2026-10-12
Modified: 2026-10-13
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Threat Intelligence Pending
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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.
Quick Facts
| CVE ID | CVE-2026-109240 |
| CVSS Score | 3.1 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L |
| Published | 2026-10-12 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |