CVE-2026-33995CWE-415

FreeRDP: Possible double free in kerberos_AcceptSecurityContext

Medium · published March 30, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
41.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00492 · 41.4th percentile
Weakness
CWE-415 · Double Free
Published
2026-03-30T21:43Z
EPSS history
Timeline
  • 30 MAR 21:43Z
    FreeRDP: Possible double free in kerberos_AcceptSecurityContext
    cvelistv5