Reachable Assertion Affecting freerdp3 package, versions <3.23.0+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.26% (17th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FREERDP3-15352323
  • published26 Feb 2026
  • disclosed25 Feb 2026

Introduced: 25 Feb 2026

CVE-2026-27015  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

Upgrade Debian:unstable freerdp3 to version 3.23.0+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp3 package and not the freerdp3 package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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_ASSERTabort(). 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.

CVSS Base Scores

version 3.1