Memory Disclosure Vulnerability in FreeRDP Smartcard Functionality
CVE-2026-109948

5.3MEDIUM

Key Information:

Vendor

Freerdp

Status
Freerdp
Vendor
CVE Published:
13 October 2026

What is CVE-2026-109948?

An uninitialized memory disclosure vulnerability exists in the smartcard_Transmit_Call of FreeRDP. In versions prior to 3.32.0, malicious RDP servers can exploit this flaw by sending SCardTransmit requests with an invalid card handle and a nonzero receive length. This action can lead to the serialization of up to 66,560 uninitialized bytes from client memory, potentially exposing sensitive information.

Affected Version(s)

FreeRDP 3.0.0 < 3.32.0

FreeRDP 3.32.0

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GH...
vendor-advisory
https://www.vulncheck.com/advisories/freerdp-3.0.0-before...
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kushalkhemka
opensec-intelligence
mayank-jangid-moon
skigeek16
.