Medium severity · published Oct 13, 2026
CVE-2026-109945
FreeRDP 3.0.0 before 3.32.0 Smartcard Use-After-Free via Concurrent Disconnect and Transmit
5.9
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
FreeRDP · FreeRDP
3.0.0 before 3.32.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109945
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109945
vendor-advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rpr-jjjg-5qv6
third-party-advisory
https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-smartcard-use-after-free-via-concurrent-disconnect-and-transmit
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