CVE-2026-109945

Public on 2026-10-13

Modified on 2026-10-16

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.

Severity

Medium

See what this means

CVSS v3 Base Score

5.9

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	freerdp	Not Affected
Amazon Linux 2023	freerdp	Pending Fix
Amazon Linux 2027 Preview	freerdp	Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-109945 Mitre: CVE-2026-109945