CVE-2026-33995
Fixed in a distro release EPSS <1%CVSS 5.3
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.
Products: FreeRDP
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux 2023 | freerdp | 2:3.6.3-1.amzn2023.0.10 |
| Amazon Linux 2023 | freerdp-devel | 2:3.6.3-1.amzn2023.0.10 |
| Amazon Linux 2023 | freerdp-libs | 2:3.6.3-1.amzn2023.0.10 |
| Amazon Linux 2023 | freerdp-server | 2:3.6.3-1.amzn2023.0.10 |
| Amazon Linux 2023 | libwinpr | 2:3.6.3-1.amzn2023.0.10 |
| Amazon Linux 2023 | libwinpr-devel | 2:3.6.3-1.amzn2023.0.10 |
| Debian 12 | freerdp2 | no fix |
| Debian 13 | freerdp3 | 3.15.0+dfsg-2.1+deb13u2 |
| Debian 14 | freerdp3 | 3.24.2+dfsg-1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | freerdp | 3.10.3-150700.3.17.1 |
| SUSE Linux Enterprise Server 16.0 | freerdp | 3.26.0-160000.1.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | freerdp | 3.26.0-160000.1.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | freerdp | 3.10.3-150700.3.17.1 |
| Ubuntu 16.04 LTS | freerdp | no fix |
| Ubuntu 18.04 LTS | freerdp | no fix |
| Ubuntu 22.04 LTS | freerdp2 | no fix |
| Ubuntu 24.04 LTS | freerdp3 | 3.30.0+dfsg-0ubuntu0.24.04.1 |
| Ubuntu 25.10 | freerdp3 | no fix |
| Ubuntu 26.04 LTS | freerdp3 | 3.30.0+dfsg-0ubuntu0.26.04.1 |
| Ubuntu Pro 18.04 LTS | freerdp2 | no fix |
| Ubuntu Pro 20.04 LTS | freerdp2 | no fix |
| Ubuntu Pro 24.04 LTS | freerdp2 | no fix |
| openSUSE Leap 16.0 | freerdp | 3.26.0-160000.1.1 |
| openSUSE Tumbleweed | freerdp | 3.24.2-1.1 |