Double Free Affecting freerdp3 package, versions <3.24.2+dfsg-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.28% (20th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FREERDP3-15805312
  • published29 Mar 2026
  • disclosed30 Mar 2026

Introduced: 29 Mar 2026

CVE-2026-33995  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade Debian:unstable freerdp3 to version 3.24.2+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 3.24.2, a double-free vulnerability in kerberos_AcceptSecurityContext() and kerberos_InitializeSecurityContextA() (WinPR, winpr/libwinpr/sspi/Kerberos/kerberos.c) can cause a crash in any FreeRDP clients on systems where Kerberos and/or Kerberos U2U is configured (Samba AD member, or krb5 for NFS). The crash is triggered during NLA connection teardown and requires a failed authentication attempt. This issue has been patched in version 3.24.2.

CVSS Base Scores

version 3.1