Bug 2430885 (CVE-2026-23883) - CVE-2026-23883 freerdp: FreeRDP: Arbitrary code execution and denial of service via malicious server
Summary: CVE-2026-23883 freerdp: FreeRDP: Arbitrary code execution and denial of servi...
Keywords:
Status: NEW
Alias: CVE-2026-23883
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2430920 2430922 2430924 2430921 2430923
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-19 18:02 UTC by OSIDB Bzimport
Modified: 2026-02-23 01:50 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:2048 0 None None None 2026-02-05 10:19:29 UTC
Red Hat Product Errata RHSA-2026:2081 0 None None None 2026-02-05 11:43:41 UTC
Red Hat Product Errata RHSA-2026:2222 0 None None None 2026-02-09 01:33:56 UTC
Red Hat Product Errata RHSA-2026:2736 0 None None None 2026-02-16 13:05:14 UTC
Red Hat Product Errata RHSA-2026:2770 0 None None None 2026-02-17 03:25:38 UTC
Red Hat Product Errata RHSA-2026:2824 0 None None None 2026-02-17 15:55:57 UTC
Red Hat Product Errata RHSA-2026:2952 0 None None None 2026-02-18 14:30:21 UTC
Red Hat Product Errata RHSA-2026:3037 0 None None None 2026-02-23 01:50:18 UTC

Description OSIDB Bzimport 2026-01-19 18:02:10 UTC 
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, `xf_Pointer_New` frees `cursorPixels` on failure, then `pointer_free` calls `xf_Pointer_Free` and frees it again, triggering ASan UAF. A malicious server can trigger a client‑side use after free, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.
Comment 1 errata-xmlrpc 2026-02-05 10:19:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:2048 https://access.redhat.com/errata/RHSA-2026:2048
Comment 2 errata-xmlrpc 2026-02-05 11:43:40 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:2081 https://access.redhat.com/errata/RHSA-2026:2081
Comment 3 errata-xmlrpc 2026-02-09 01:33:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:2222 https://access.redhat.com/errata/RHSA-2026:2222
Comment 4 errata-xmlrpc 2026-02-16 13:05:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2026:2736 https://access.redhat.com/errata/RHSA-2026:2736
Comment 5 errata-xmlrpc 2026-02-17 03:25:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2026:2770 https://access.redhat.com/errata/RHSA-2026:2770
Comment 6 errata-xmlrpc 2026-02-17 15:55:56 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:2824 https://access.redhat.com/errata/RHSA-2026:2824
Comment 7 errata-xmlrpc 2026-02-18 14:30:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:2952 https://access.redhat.com/errata/RHSA-2026:2952
Comment 8 errata-xmlrpc 2026-02-23 01:50:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:3037 https://access.redhat.com/errata/RHSA-2026:3037
Note You need to log in before you can comment on or make changes to this bug.