CVE-2026-33995
FreeRDP: Possible double free in kerberos_AcceptSecurityContext
- State
- Published
- Severity
- 5.3 Medium
- Published
- Mar 30, 2026
- Updated
- Apr 2, 2026
- Reserved
- Mar 24, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | GitHub_M |
Weaknesses
- CWE-415 Double Free
Affected Products
| Product | Versions |
|---|---|
FreeRDPFreeRDP |
|
References
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