What’s Vulnerable › Vulnerabilities

CVE-2026-109945: FreeRDP 3.0.0 before 3.32.0 Smartcard Use-After-Free via Concurrent Disconnect and Transmit

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-10-13 · updated 2026-10-21
• Weakness: CWE-362

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.

Affected products

• FreeRDP: from 3.3.0 before 3.32.0 — fixed in 3.32.0

How to fix

Upgrade to a fixed version: FreeRDP 3.32.0. Check the vendor advisory for mitigations.

References

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rpr-jjjg-5qv6
• https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-smartcard-use-after-free-via-concurrent-disconnect-and-transmit
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rpr-jjjg-5qv6

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