Bug 2442748 (CVE-2026-27015) - CVE-2026-27015 freerdp: FreeRDP: Denial of Service via missing bounds check in smartcard redirection
Summary: CVE-2026-27015 freerdp: FreeRDP: Denial of Service via missing bounds check i...
Keywords:
Status: NEW
Alias: CVE-2026-27015
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2442847 2442852 2442859 2442861 2442863
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-25 21:02 UTC by OSIDB Bzimport
Modified: 2026-02-25 23:15 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-02-25 21:02:43 UTC 
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a missing bounds check in `smartcard_unpack_read_size_align()` (`libfreerdp/utils/smartcard_pack.c:1703`) allows a malicious RDP server to crash the FreeRDP client via a reachable `WINPR_ASSERT` → `abort()`. The crash occurs in upstream builds where `WITH_VERBOSE_WINPR_ASSERT=ON` (default in FreeRDP 3.22.0 / current WinPR CMake defaults). Smartcard redirection must be explicitly enabled by the user (e.g., `xfreerdp /smartcard`; `/smartcard-logon` implies `/smartcard`). Version 3.23.0 fixes the issue.
Note You need to log in before you can comment on or make changes to this bug.