CVE-2026-109945

MediumCVSS 5.9/10Last modified Oct 21, 2026

Description

FreeRDP 3.0.0 before 3.32.0 contains a heap use-after-free vulnerability in smartcard emulation when SCARD_IOCTL_DISCONNECT and SCARD_IOCTL_TRANSMIT operate concurrently on one card handle. A malicious RDP server can overlap these IRPs through separate context workers to free and reuse the SCardHandle, causing client-process heap corruption and termination.

Metrics

CVSS 3.1 5.9/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-362

Affected software

Vendor	Product	Versions
FreeRDP	FreeRDP	>= 3.0.0, < 3.32.0

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rpr-jjjg-5qv6Exploit, Vendor Advisory
https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-smartcard-use-after-free-via-concurrent-disconnect-and-transmitThird Party Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rpr-jjjg-5qv6Exploit, Vendor Advisory

Timeline

Published: Oct 13, 2026
Last modified: Oct 21, 2026
NVD status: Analyzed

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